21487609

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{8839}}^1$

素因数の和:8880

約数の個数: 16

約数和(自身を含む): 26732160

約数和(自身を除く): 5244551

約数列:

[1, 11, 13, 17, 143, 187, 221, 2431, 8839, 97229, 114907, 150263, 1263977, 1652893, 1953419, 21487609]

約数ペア:

[(1, 21487609), (11, 1953419), (13, 1652893), (17, 1263977), (143, 150263), (187, 114907), (221, 97229), (2431, 8839)]