21038630

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{72547}}^1$

素因数の和:72583

約数の個数: 16

約数和(自身を含む): 39175920

約数和(自身を除く): 18137290

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 72547, 145094, 362735, 725470, 2103863, 4207726, 10519315, 21038630]

約数ペア:

[(1, 21038630), (2, 10519315), (5, 4207726), (10, 2103863), (29, 725470), (58, 362735), (145, 145094), (290, 72547)]