20665558

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1\times {\mathrm{1669}}^1$

素因数の和:1863

約数の個数: 16

約数和(自身を含む): 31983840

約数和(自身を除く): 11318282

約数列:

[1, 2, 41, 82, 151, 302, 1669, 3338, 6191, 12382, 68429, 136858, 252019, 504038, 10332779, 20665558]

約数ペア:

[(1, 20665558), (2, 10332779), (41, 504038), (82, 252019), (151, 136858), (302, 68429), (1669, 12382), (3338, 6191)]