20709118

素因数分解:

$2^1\times {\mathrm{59}}^1\times {\mathrm{223}}^1\times {\mathrm{787}}^1$

素因数の和:1071

約数の個数: 16

約数和(自身を含む): 31772160

約数和(自身を除く): 11063042

約数列:

[1, 2, 59, 118, 223, 446, 787, 1574, 13157, 26314, 46433, 92866, 175501, 351002, 10354559, 20709118]

約数ペア:

[(1, 20709118), (2, 10354559), (59, 351002), (118, 175501), (223, 92866), (446, 46433), (787, 26314), (1574, 13157)]