21999580

素因数分解:

$2^2\times 5^1\times {\mathrm{773}}^1\times {\mathrm{1423}}^1$

素因数の和:2205

約数の個数: 24

約数和(自身を含む): 46291392

約数和(自身を除く): 24291812

約数列:

[1, 2, 4, 5, 10, 20, 773, 1423, 1546, 2846, 3092, 3865, 5692, 7115, 7730, 14230, 15460, 28460, 1099979, 2199958, 4399916, 5499895, 10999790, 21999580]

約数ペア:

[(1, 21999580), (2, 10999790), (4, 5499895), (5, 4399916), (10, 2199958), (20, 1099979), (773, 28460), (1423, 15460), (1546, 14230), (2846, 7730), (3092, 7115), (3865, 5692)]