21207050

素因数分解:

$2^1\times 5^2\times {\mathrm{197}}^1\times {\mathrm{2153}}^1$

素因数の和:2362

約数の個数: 24

約数和(自身を含む): 39663756

約数和(自身を除く): 18456706

約数列:

[1, 2, 5, 10, 25, 50, 197, 394, 985, 1970, 2153, 4306, 4925, 9850, 10765, 21530, 53825, 107650, 424141, 848282, 2120705, 4241410, 10603525, 21207050]

約数ペア:

[(1, 21207050), (2, 10603525), (5, 4241410), (10, 2120705), (25, 848282), (50, 424141), (197, 107650), (394, 53825), (985, 21530), (1970, 10765), (2153, 9850), (4306, 4925)]