21377837

素因数分解:

${\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1\times {\mathrm{229}}^1$

素因数の和:452

約数の個数: 16

約数和(自身を含む): 23802240

約数和(自身を除く): 2424403

約数列:

[1, 13, 43, 167, 229, 559, 2171, 2977, 7181, 9847, 38243, 93353, 128011, 497159, 1644449, 21377837]

約数ペア:

[(1, 21377837), (13, 1644449), (43, 497159), (167, 128011), (229, 93353), (559, 38243), (2171, 9847), (2977, 7181)]