21642768

素因数分解:

$2^4\times 3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{421}}^1$

素因数の和:462

約数の個数: 160

約数和(自身を含む): 75352320

約数和(自身を除く): 53709552

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 17, 18, 21, 24, 27, 28, 34, 36, 42, 48, 51, 54, 56, 63, 68, 72, 84, 102, 108, 112, 119, 126, 136, 144, 153, 168, 189, 204, 216, 238, 252, 272, 306, 336, 357, 378, 408, 421, 432, 459, 476, 504, 612, 714, 756, 816, 842, 918, 952, 1008, 1071, 1224, 1263, 1428, 1512, 1684, 1836, 1904, 2142, 2448, 2526, 2856, 2947, 3024, 3213, 3368, 3672, 3789, 4284, 5052, 5712, 5894, 6426, 6736, 7157, 7344, 7578, 8568, 8841, 10104, 11367, 11788, 12852, 14314, 15156, 17136, 17682, 20208, 21471, 22734, 23576, 25704, 26523, 28628, 30312, 35364, 42942, 45468, 47152, 50099, 51408, 53046, 57256, 60624, 64413, 70728, 79569, 85884, 90936, 100198, 106092, 114512, 128826, 141456, 150297, 159138, 171768, 181872, 193239, 200396, 212184, 257652, 300594, 318276, 343536, 386478, 400792, 424368, 450891, 515304, 601188, 636552, 772956, 801584, 901782, 1030608, 1202376, 1273104, 1352673, 1545912, 1803564, 2404752, 2705346, 3091824, 3607128, 5410692, 7214256, 10821384, 21642768]

約数ペア:

[(1, 21642768), (2, 10821384), (3, 7214256), (4, 5410692), (6, 3607128), (7, 3091824), (8, 2705346), (9, 2404752), (12, 1803564), (14, 1545912), (16, 1352673), (17, 1273104), (18, 1202376), (21, 1030608), (24, 901782), (27, 801584), (28, 772956), (34, 636552), (36, 601188), (42, 515304), (48, 450891), (51, 424368), (54, 400792), (56, 386478), (63, 343536), (68, 318276), (72, 300594), (84, 257652), (102, 212184), (108, 200396), (112, 193239), (119, 181872), (126, 171768), (136, 159138), (144, 150297), (153, 141456), (168, 128826), (189, 114512), (204, 106092), (216, 100198), (238, 90936), (252, 85884), (272, 79569), (306, 70728), (336, 64413), (357, 60624), (378, 57256), (408, 53046), (421, 51408), (432, 50099), (459, 47152), (476, 45468), (504, 42942), (612, 35364), (714, 30312), (756, 28628), (816, 26523), (842, 25704), (918, 23576), (952, 22734), (1008, 21471), (1071, 20208), (1224, 17682), (1263, 17136), (1428, 15156), (1512, 14314), (1684, 12852), (1836, 11788), (1904, 11367), (2142, 10104), (2448, 8841), (2526, 8568), (2856, 7578), (2947, 7344), (3024, 7157), (3213, 6736), (3368, 6426), (3672, 5894), (3789, 5712), (4284, 5052)]