21065050

素因数分解:

$2^1\times 5^2\times {\mathrm{601}}^1\times {\mathrm{701}}^1$

素因数の和:1314

約数の個数: 24

約数和(自身を含む): 39302172

約数和(自身を除く): 18237122

約数列:

[1, 2, 5, 10, 25, 50, 601, 701, 1202, 1402, 3005, 3505, 6010, 7010, 15025, 17525, 30050, 35050, 421301, 842602, 2106505, 4213010, 10532525, 21065050]

約数ペア:

[(1, 21065050), (2, 10532525), (5, 4213010), (10, 2106505), (25, 842602), (50, 421301), (601, 35050), (701, 30050), (1202, 17525), (1402, 15025), (3005, 7010), (3505, 6010)]