20697214

素因数分解:

$2^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1\times {\mathrm{401}}^1$

素因数の和:731

約数の個数: 16

約数和(自身を含む): 31520016

約数和(自身を除く): 10822802

約数列:

[1, 2, 131, 197, 262, 394, 401, 802, 25807, 51614, 52531, 78997, 105062, 157994, 10348607, 20697214]

約数ペア:

[(1, 20697214), (2, 10348607), (131, 157994), (197, 105062), (262, 78997), (394, 52531), (401, 51614), (802, 25807)]