21223660

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{9391}}^1$

素因数の和:9513

約数の個数: 24

約数和(自身を含む): 44968896

約数和(自身を除く): 23745236

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 9391, 18782, 37564, 46955, 93910, 187820, 1061183, 2122366, 4244732, 5305915, 10611830, 21223660]

約数ペア:

[(1, 21223660), (2, 10611830), (4, 5305915), (5, 4244732), (10, 2122366), (20, 1061183), (113, 187820), (226, 93910), (452, 46955), (565, 37564), (1130, 18782), (2260, 9391)]