21724312

素因数分解:

$2^3\times {\mathrm{419}}^1\times {\mathrm{6481}}^1$

素因数の和:6906

約数の個数: 16

約数和(自身を含む): 40836600

約数和(自身を除く): 19112288

約数列:

[1, 2, 4, 8, 419, 838, 1676, 3352, 6481, 12962, 25924, 51848, 2715539, 5431078, 10862156, 21724312]

約数ペア:

[(1, 21724312), (2, 10862156), (4, 5431078), (8, 2715539), (419, 51848), (838, 25924), (1676, 12962), (3352, 6481)]