1988623

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{41}}^2$

素因数の和:115

約数の個数: 18

約数和(自身を含む): 2522472

約数和(自身を除く): 533849

約数列:

[1, 7, 13, 41, 91, 169, 287, 533, 1183, 1681, 3731, 6929, 11767, 21853, 48503, 152971, 284089, 1988623]

約数ペア:

[(1, 1988623), (7, 284089), (13, 152971), (41, 48503), (91, 21853), (169, 11767), (287, 6929), (533, 3731), (1183, 1681)]