21145824

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{617}}^1$

素因数の和:657

約数の個数: 144

約数和(自身を含む): 72884448

約数和(自身を除く): 51738624

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, 68, 72, 84, 96, 102, 112, 119, 126, 136, 144, 153, 168, 204, 224, 238, 252, 272, 288, 306, 336, 357, 408, 476, 504, 544, 612, 617, 672, 714, 816, 952, 1008, 1071, 1224, 1234, 1428, 1632, 1851, 1904, 2016, 2142, 2448, 2468, 2856, 3702, 3808, 4284, 4319, 4896, 4936, 5553, 5712, 7404, 8568, 8638, 9872, 10489, 11106, 11424, 12957, 14808, 17136, 17276, 19744, 20978, 22212, 25914, 29616, 31467, 34272, 34552, 38871, 41956, 44424, 51828, 59232, 62934, 69104, 73423, 77742, 83912, 88848, 94401, 103656, 125868, 138208, 146846, 155484, 167824, 177696, 188802, 207312, 220269, 251736, 293692, 310968, 335648, 377604, 414624, 440538, 503472, 587384, 621936, 660807, 755208, 881076, 1006944, 1174768, 1243872, 1321614, 1510416, 1762152, 2349536, 2643228, 3020832, 3524304, 5286456, 7048608, 10572912, 21145824]

約数ペア:

[(1, 21145824), (2, 10572912), (3, 7048608), (4, 5286456), (6, 3524304), (7, 3020832), (8, 2643228), (9, 2349536), (12, 1762152), (14, 1510416), (16, 1321614), (17, 1243872), (18, 1174768), (21, 1006944), (24, 881076), (28, 755208), (32, 660807), (34, 621936), (36, 587384), (42, 503472), (48, 440538), (51, 414624), (56, 377604), (63, 335648), (68, 310968), (72, 293692), (84, 251736), (96, 220269), (102, 207312), (112, 188802), (119, 177696), (126, 167824), (136, 155484), (144, 146846), (153, 138208), (168, 125868), (204, 103656), (224, 94401), (238, 88848), (252, 83912), (272, 77742), (288, 73423), (306, 69104), (336, 62934), (357, 59232), (408, 51828), (476, 44424), (504, 41956), (544, 38871), (612, 34552), (617, 34272), (672, 31467), (714, 29616), (816, 25914), (952, 22212), (1008, 20978), (1071, 19744), (1224, 17276), (1234, 17136), (1428, 14808), (1632, 12957), (1851, 11424), (1904, 11106), (2016, 10489), (2142, 9872), (2448, 8638), (2468, 8568), (2856, 7404), (3702, 5712), (3808, 5553), (4284, 4936), (4319, 4896)]