20019909

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{5641}}^1$

素因数の和:5677

約数の個数: 24

約数和(自身を含む): 33039552

約数和(自身を除く): 13019643

約数列:

[1, 3, 7, 13, 21, 39, 91, 169, 273, 507, 1183, 3549, 5641, 16923, 39487, 73333, 118461, 219999, 513331, 953329, 1539993, 2859987, 6673303, 20019909]

約数ペア:

[(1, 20019909), (3, 6673303), (7, 2859987), (13, 1539993), (21, 953329), (39, 513331), (91, 219999), (169, 118461), (273, 73333), (507, 39487), (1183, 16923), (3549, 5641)]