21902279

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{4691}}^1$

素因数の和:4750

約数の個数: 16

約数和(自身を含む): 27025920

約数和(自身を除く): 5123641

約数列:

[1, 7, 23, 29, 161, 203, 667, 4669, 4691, 32837, 107893, 136039, 755251, 952273, 3128897, 21902279]

約数ペア:

[(1, 21902279), (7, 3128897), (23, 952273), (29, 755251), (161, 136039), (203, 107893), (667, 32837), (4669, 4691)]