21846760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{42013}}^1$

素因数の和:42037

約数の個数: 32

約数和(自身を含む): 52937640

約数和(自身を除く): 31090880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 42013, 84026, 168052, 210065, 336104, 420130, 546169, 840260, 1092338, 1680520, 2184676, 2730845, 4369352, 5461690, 10923380, 21846760]

約数ペア:

[(1, 21846760), (2, 10923380), (4, 5461690), (5, 4369352), (8, 2730845), (10, 2184676), (13, 1680520), (20, 1092338), (26, 840260), (40, 546169), (52, 420130), (65, 336104), (104, 210065), (130, 168052), (260, 84026), (520, 42013)]