21318624

素因数分解:

$2^5\times 3^2\times {\mathrm{79}}^1\times {\mathrm{937}}^1$

素因数の和:1032

約数の個数: 72

約数和(自身を含む): 61457760

約数和(自身を除く): 40139136

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 79, 96, 144, 158, 237, 288, 316, 474, 632, 711, 937, 948, 1264, 1422, 1874, 1896, 2528, 2811, 2844, 3748, 3792, 5622, 5688, 7496, 7584, 8433, 11244, 11376, 14992, 16866, 22488, 22752, 29984, 33732, 44976, 67464, 74023, 89952, 134928, 148046, 222069, 269856, 296092, 444138, 592184, 666207, 888276, 1184368, 1332414, 1776552, 2368736, 2664828, 3553104, 5329656, 7106208, 10659312, 21318624]

約数ペア:

[(1, 21318624), (2, 10659312), (3, 7106208), (4, 5329656), (6, 3553104), (8, 2664828), (9, 2368736), (12, 1776552), (16, 1332414), (18, 1184368), (24, 888276), (32, 666207), (36, 592184), (48, 444138), (72, 296092), (79, 269856), (96, 222069), (144, 148046), (158, 134928), (237, 89952), (288, 74023), (316, 67464), (474, 44976), (632, 33732), (711, 29984), (937, 22752), (948, 22488), (1264, 16866), (1422, 14992), (1874, 11376), (1896, 11244), (2528, 8433), (2811, 7584), (2844, 7496), (3748, 5688), (3792, 5622)]