12920105

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{3851}}^1$

素因数の和:3928

約数の個数: 16

約数和(自身を含む): 17195328

約数和(自身を除く): 4275223

約数列:

[1, 5, 11, 55, 61, 305, 671, 3355, 3851, 19255, 42361, 211805, 234911, 1174555, 2584021, 12920105]

約数ペア:

[(1, 12920105), (5, 2584021), (11, 1174555), (55, 234911), (61, 211805), (305, 42361), (671, 19255), (3355, 3851)]