21549309

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{1667}}^1$

素因数の和:1840

約数の個数: 16

約数和(自身を含む): 29890560

約数和(自身を除く): 8341251

約数列:

[1, 3, 31, 93, 139, 417, 1667, 4309, 5001, 12927, 51677, 155031, 231713, 695139, 7183103, 21549309]

約数ペア:

[(1, 21549309), (3, 7183103), (31, 695139), (93, 231713), (139, 155031), (417, 51677), (1667, 12927), (4309, 5001)]