21115198

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{179}}^1\times {\mathrm{349}}^1$

素因数の和:556

約数の個数: 24

約数和(自身を含む): 34587000

約数和(自身を除く): 13471802

約数列:

[1, 2, 13, 26, 169, 179, 338, 349, 358, 698, 2327, 4537, 4654, 9074, 30251, 58981, 60502, 62471, 117962, 124942, 812123, 1624246, 10557599, 21115198]

約数ペア:

[(1, 21115198), (2, 10557599), (13, 1624246), (26, 812123), (169, 124942), (179, 117962), (338, 62471), (349, 60502), (358, 58981), (698, 30251), (2327, 9074), (4537, 4654)]