20664722

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{21481}}^1$

素因数の和:21533

約数の個数: 16

約数和(自身を含む): 34285272

約数和(自身を除く): 13620550

約数列:

[1, 2, 13, 26, 37, 74, 481, 962, 21481, 42962, 279253, 558506, 794797, 1589594, 10332361, 20664722]

約数ペア:

[(1, 20664722), (2, 10332361), (13, 1589594), (26, 794797), (37, 558506), (74, 279253), (481, 42962), (962, 21481)]