166688249

素因数分解:

$7^2\times {\mathrm{13}}^2\times {\mathrm{20129}}^1$

素因数の和:20169

約数の個数: 18

約数和(自身を含む): 209976030

約数和(自身を除く): 43287781

約数列:

[1, 7, 13, 49, 91, 169, 637, 1183, 8281, 20129, 140903, 261677, 986321, 1831739, 3401801, 12822173, 23812607, 166688249]

約数ペア:

[(1, 166688249), (7, 23812607), (13, 12822173), (49, 3401801), (91, 1831739), (169, 986321), (637, 261677), (1183, 140903), (8281, 20129)]