21982715

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{1553}}^1$

素因数の和:1726

約数の個数: 16

約数和(自身を含む): 27972000

約数和(自身を除く): 5989285

約数列:

[1, 5, 19, 95, 149, 745, 1553, 2831, 7765, 14155, 29507, 147535, 231397, 1156985, 4396543, 21982715]

約数ペア:

[(1, 21982715), (5, 4396543), (19, 1156985), (95, 231397), (149, 147535), (745, 29507), (1553, 14155), (2831, 7765)]