21659904

素因数分解:

$2^8\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1$

素因数の和:125

約数の個数: 216

約数和(自身を含む): 76527360

約数和(自身を除く): 54867456

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 17, 18, 21, 24, 28, 32, 34, 36, 42, 48, 51, 56, 63, 64, 68, 72, 79, 84, 96, 102, 112, 119, 126, 128, 136, 144, 153, 158, 168, 192, 204, 224, 237, 238, 252, 256, 272, 288, 306, 316, 336, 357, 384, 408, 448, 474, 476, 504, 544, 553, 576, 612, 632, 672, 711, 714, 768, 816, 896, 948, 952, 1008, 1071, 1088, 1106, 1152, 1224, 1264, 1343, 1344, 1422, 1428, 1632, 1659, 1792, 1896, 1904, 2016, 2142, 2176, 2212, 2304, 2448, 2528, 2686, 2688, 2844, 2856, 3264, 3318, 3792, 3808, 4029, 4032, 4284, 4352, 4424, 4896, 4977, 5056, 5372, 5376, 5688, 5712, 6528, 6636, 7584, 7616, 8058, 8064, 8568, 8848, 9401, 9792, 9954, 10112, 10744, 11376, 11424, 12087, 13056, 13272, 15168, 15232, 16116, 16128, 17136, 17696, 18802, 19584, 19908, 20224, 21488, 22752, 22848, 24174, 26544, 28203, 30336, 30464, 32232, 34272, 35392, 37604, 39168, 39816, 42976, 45504, 45696, 48348, 53088, 56406, 60672, 64464, 68544, 70784, 75208, 79632, 84609, 85952, 91008, 91392, 96696, 106176, 112812, 128928, 137088, 141568, 150416, 159264, 169218, 171904, 182016, 193392, 212352, 225624, 257856, 274176, 300832, 318528, 338436, 343808, 386784, 424704, 451248, 515712, 601664, 637056, 676872, 773568, 902496, 1031424, 1203328, 1274112, 1353744, 1547136, 1804992, 2406656, 2707488, 3094272, 3609984, 5414976, 7219968, 10829952, 21659904]

約数ペア:

[(1, 21659904), (2, 10829952), (3, 7219968), (4, 5414976), (6, 3609984), (7, 3094272), (8, 2707488), (9, 2406656), (12, 1804992), (14, 1547136), (16, 1353744), (17, 1274112), (18, 1203328), (21, 1031424), (24, 902496), (28, 773568), (32, 676872), (34, 637056), (36, 601664), (42, 515712), (48, 451248), (51, 424704), (56, 386784), (63, 343808), (64, 338436), (68, 318528), (72, 300832), (79, 274176), (84, 257856), (96, 225624), (102, 212352), (112, 193392), (119, 182016), (126, 171904), (128, 169218), (136, 159264), (144, 150416), (153, 141568), (158, 137088), (168, 128928), (192, 112812), (204, 106176), (224, 96696), (237, 91392), (238, 91008), (252, 85952), (256, 84609), (272, 79632), (288, 75208), (306, 70784), (316, 68544), (336, 64464), (357, 60672), (384, 56406), (408, 53088), (448, 48348), (474, 45696), (476, 45504), (504, 42976), (544, 39816), (553, 39168), (576, 37604), (612, 35392), (632, 34272), (672, 32232), (711, 30464), (714, 30336), (768, 28203), (816, 26544), (896, 24174), (948, 22848), (952, 22752), (1008, 21488), (1071, 20224), (1088, 19908), (1106, 19584), (1152, 18802), (1224, 17696), (1264, 17136), (1343, 16128), (1344, 16116), (1422, 15232), (1428, 15168), (1632, 13272), (1659, 13056), (1792, 12087), (1896, 11424), (1904, 11376), (2016, 10744), (2142, 10112), (2176, 9954), (2212, 9792), (2304, 9401), (2448, 8848), (2528, 8568), (2686, 8064), (2688, 8058), (2844, 7616), (2856, 7584), (3264, 6636), (3318, 6528), (3792, 5712), (3808, 5688), (4029, 5376), (4032, 5372), (4284, 5056), (4352, 4977), (4424, 4896)]