21093007

素因数分解:

${\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{397}}^1$

素因数の和:538

約数の個数: 16

約数和(自身を含む): 23491552

約数和(自身を除く): 2398545

約数列:

[1, 13, 61, 67, 397, 793, 871, 4087, 5161, 24217, 26599, 53131, 314821, 345787, 1622539, 21093007]

約数ペア:

[(1, 21093007), (13, 1622539), (61, 345787), (67, 314821), (397, 53131), (793, 26599), (871, 24217), (4087, 5161)]