21810830

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{7547}}^1$

素因数の和:7588

約数の個数: 24

約数和(自身を含む): 41710248

約数和(自身を除く): 19899418

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 289, 578, 1445, 2890, 7547, 15094, 37735, 75470, 128299, 256598, 641495, 1282990, 2181083, 4362166, 10905415, 21810830]

約数ペア:

[(1, 21810830), (2, 10905415), (5, 4362166), (10, 2181083), (17, 1282990), (34, 641495), (85, 256598), (170, 128299), (289, 75470), (578, 37735), (1445, 15094), (2890, 7547)]