21429216

素因数分解:

$2^5\times 3^2\times {\mathrm{37}}^1\times {\mathrm{2011}}^1$

素因数の和:2064

約数の個数: 72

約数和(自身を含む): 62617464

約数和(自身を除く): 41188248

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 37, 48, 72, 74, 96, 111, 144, 148, 222, 288, 296, 333, 444, 592, 666, 888, 1184, 1332, 1776, 2011, 2664, 3552, 4022, 5328, 6033, 8044, 10656, 12066, 16088, 18099, 24132, 32176, 36198, 48264, 64352, 72396, 74407, 96528, 144792, 148814, 193056, 223221, 289584, 297628, 446442, 579168, 595256, 669663, 892884, 1190512, 1339326, 1785768, 2381024, 2678652, 3571536, 5357304, 7143072, 10714608, 21429216]

約数ペア:

[(1, 21429216), (2, 10714608), (3, 7143072), (4, 5357304), (6, 3571536), (8, 2678652), (9, 2381024), (12, 1785768), (16, 1339326), (18, 1190512), (24, 892884), (32, 669663), (36, 595256), (37, 579168), (48, 446442), (72, 297628), (74, 289584), (96, 223221), (111, 193056), (144, 148814), (148, 144792), (222, 96528), (288, 74407), (296, 72396), (333, 64352), (444, 48264), (592, 36198), (666, 32176), (888, 24132), (1184, 18099), (1332, 16088), (1776, 12066), (2011, 10656), (2664, 8044), (3552, 6033), (4022, 5328)]