21890737

素因数分解:

${\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1\times {\mathrm{421}}^1$

素因数の和:624

約数の個数: 16

約数和(自身を含む): 24914880

約数和(自身を除く): 3024143

約数列:

[1, 11, 29, 163, 319, 421, 1793, 4631, 4727, 12209, 51997, 68623, 134299, 754853, 1990067, 21890737]

約数ペア:

[(1, 21890737), (11, 1990067), (29, 754853), (163, 134299), (319, 68623), (421, 51997), (1793, 12209), (4631, 4727)]