21000343360

素因数分解:

$2^6\times 5^1\times {\mathrm{3271}}^1\times {\mathrm{20063}}^1$

素因数の和:23351

約数の個数: 56

約数和(自身を含む): 50024848896

約数和(自身を除く): 29024505536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 3271, 6542, 13084, 16355, 20063, 26168, 32710, 40126, 52336, 65420, 80252, 100315, 104672, 130840, 160504, 200630, 209344, 261680, 321008, 401260, 523360, 642016, 802520, 1046720, 1284032, 1605040, 3210080, 6420160, 65626073, 131252146, 262504292, 328130365, 525008584, 656260730, 1050017168, 1312521460, 2100034336, 2625042920, 4200068672, 5250085840, 10500171680, 21000343360]

約数ペア:

[(1, 21000343360), (2, 10500171680), (4, 5250085840), (5, 4200068672), (8, 2625042920), (10, 2100034336), (16, 1312521460), (20, 1050017168), (32, 656260730), (40, 525008584), (64, 328130365), (80, 262504292), (160, 131252146), (320, 65626073), (3271, 6420160), (6542, 3210080), (13084, 1605040), (16355, 1284032), (20063, 1046720), (26168, 802520), (32710, 642016), (40126, 523360), (52336, 401260), (65420, 321008), (80252, 261680), (100315, 209344), (104672, 200630), (130840, 160504)]