204515857

素因数分解:

$7^2\times {\mathrm{13}}^2\times {\mathrm{24697}}^1$

素因数の和:24737

約数の個数: 18

約数和(自身を含む): 257624838

約数和(自身を除く): 53108981

約数列:

[1, 7, 13, 49, 91, 169, 637, 1183, 8281, 24697, 172879, 321061, 1210153, 2247427, 4173793, 15731989, 29216551, 204515857]

約数ペア:

[(1, 204515857), (7, 29216551), (13, 15731989), (49, 4173793), (91, 2247427), (169, 1210153), (637, 321061), (1183, 172879), (8281, 24697)]