21000891264

素因数分解:

$2^7\times 3^1\times {\mathrm{54689821}}^1$

素因数の和:54689838

約数の個数: 32

約数和(自身を含む): 55783618440

約数和(自身を除く): 34782727176

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 384, 54689821, 109379642, 164069463, 218759284, 328138926, 437518568, 656277852, 875037136, 1312555704, 1750074272, 2625111408, 3500148544, 5250222816, 7000297088, 10500445632, 21000891264]

約数ペア:

[(1, 21000891264), (2, 10500445632), (3, 7000297088), (4, 5250222816), (6, 3500148544), (8, 2625111408), (12, 1750074272), (16, 1312555704), (24, 875037136), (32, 656277852), (48, 437518568), (64, 328138926), (96, 218759284), (128, 164069463), (192, 109379642), (384, 54689821)]