21745381

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{743}}^1$

素因数の和:900

約数の個数: 16

約数和(自身を含む): 25784064

約数和(自身を除く): 4038683

約数列:

[1, 7, 37, 113, 259, 743, 791, 4181, 5201, 27491, 29267, 83959, 192437, 587713, 3106483, 21745381]

約数ペア:

[(1, 21745381), (7, 3106483), (37, 587713), (113, 192437), (259, 83959), (743, 29267), (791, 27491), (4181, 5201)]