20738858

素因数分解:

$2^1\times 7^2\times {\mathrm{431}}^1\times {\mathrm{491}}^1$

素因数の和:938

約数の個数: 24

約数和(自身を含む): 36345024

約数和(自身を除く): 15606166

約数列:

[1, 2, 7, 14, 49, 98, 431, 491, 862, 982, 3017, 3437, 6034, 6874, 21119, 24059, 42238, 48118, 211621, 423242, 1481347, 2962694, 10369429, 20738858]

約数ペア:

[(1, 20738858), (2, 10369429), (7, 2962694), (14, 1481347), (49, 423242), (98, 211621), (431, 48118), (491, 42238), (862, 24059), (982, 21119), (3017, 6874), (3437, 6034)]