21371701

素因数分解:

${\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{397}}^1$

素因数の和:552

約数の個数: 16

約数和(自身を含む): 23870448

約数和(自身を除く): 2498747

約数列:

[1, 13, 41, 101, 397, 533, 1313, 4141, 5161, 16277, 40097, 53833, 211601, 521261, 1643977, 21371701]

約数ペア:

[(1, 21371701), (13, 1643977), (41, 521261), (101, 211601), (397, 53833), (533, 40097), (1313, 16277), (4141, 5161)]