20709242

素因数分解:

$2^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1\times {\mathrm{653}}^1$

素因数の和:913

約数の個数: 16

約数和(自身を含む): 31619592

約数和(自身を除く): 10910350

約数列:

[1, 2, 101, 157, 202, 314, 653, 1306, 15857, 31714, 65953, 102521, 131906, 205042, 10354621, 20709242]

約数ペア:

[(1, 20709242), (2, 10354621), (101, 205042), (157, 131906), (202, 102521), (314, 65953), (653, 31714), (1306, 15857)]