21474578

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{521}}^1\times {\mathrm{557}}^1$

素因数の和:1117

約数の個数: 16

約数和(自身を含む): 33205464

約数和(自身を除く): 11730886

約数列:

[1, 2, 37, 74, 521, 557, 1042, 1114, 19277, 20609, 38554, 41218, 290197, 580394, 10737289, 21474578]

約数ペア:

[(1, 21474578), (2, 10737289), (37, 580394), (74, 290197), (521, 41218), (557, 38554), (1042, 20609), (1114, 19277)]