21434991

素因数分解:

$3^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1\times {\mathrm{607}}^1$

素因数の和:838

約数の個数: 16

約数和(自身を含む): 29184000

約数和(自身を除く): 7749009

約数列:

[1, 3, 79, 149, 237, 447, 607, 1821, 11771, 35313, 47953, 90443, 143859, 271329, 7144997, 21434991]

約数ペア:

[(1, 21434991), (3, 7144997), (79, 271329), (149, 143859), (237, 90443), (447, 47953), (607, 35313), (1821, 11771)]