21219263

素因数分解:

${\mathrm{13}}^1\times {\mathrm{41}}^2\times {\mathrm{971}}^1$

素因数の和:1066

約数の個数: 12

約数和(自身を含む): 23446584

約数和(自身を除く): 2227321

約数列:

[1, 13, 41, 533, 971, 1681, 12623, 21853, 39811, 517543, 1632251, 21219263]

約数ペア:

[(1, 21219263), (13, 1632251), (41, 517543), (533, 39811), (971, 21853), (1681, 12623)]