21790745

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{2243}}^1$

素因数の和:2344

約数の個数: 16

約数和(自身を含む): 27466560

約数和(自身を除く): 5675815

約数列:

[1, 5, 29, 67, 145, 335, 1943, 2243, 9715, 11215, 65047, 150281, 325235, 751405, 4358149, 21790745]

約数ペア:

[(1, 21790745), (5, 4358149), (29, 751405), (67, 325235), (145, 150281), (335, 65047), (1943, 11215), (2243, 9715)]