21972670

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{7603}}^1$

素因数の和:7644

約数の個数: 24

約数和(自身を含む): 42019704

約数和(自身を除く): 20047034

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 289, 578, 1445, 2890, 7603, 15206, 38015, 76030, 129251, 258502, 646255, 1292510, 2197267, 4394534, 10986335, 21972670]

約数ペア:

[(1, 21972670), (2, 10986335), (5, 4394534), (10, 2197267), (17, 1292510), (34, 646255), (85, 258502), (170, 129251), (289, 76030), (578, 38015), (1445, 15206), (2890, 7603)]