18985213

素因数分解:

${\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{269}}^1$

素因数の和:432

約数の個数: 16

約数和(自身を含む): 21092400

約数和(自身を除く): 2107187

約数列:

[1, 13, 61, 89, 269, 793, 1157, 3497, 5429, 16409, 23941, 70577, 213317, 311233, 1460401, 18985213]

約数ペア:

[(1, 18985213), (13, 1460401), (61, 311233), (89, 213317), (269, 70577), (793, 23941), (1157, 16409), (3497, 5429)]