21630620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{98321}}^1$

素因数の和:98341

約数の個数: 24

約数和(自身を含む): 49554288

約数和(自身を除く): 27923668

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 98321, 196642, 393284, 491605, 983210, 1081531, 1966420, 2163062, 4326124, 5407655, 10815310, 21630620]

約数ペア:

[(1, 21630620), (2, 10815310), (4, 5407655), (5, 4326124), (10, 2163062), (11, 1966420), (20, 1081531), (22, 983210), (44, 491605), (55, 393284), (110, 196642), (220, 98321)]