31221945

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{40813}}^1$

素因数の和:40841

約数の個数: 24

約数和(自身を含む): 57302856

約数和(自身を除く): 26080911

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 40813, 122439, 204065, 367317, 612195, 693821, 1836585, 2081463, 3469105, 6244389, 10407315, 31221945]

約数ペア:

[(1, 31221945), (3, 10407315), (5, 6244389), (9, 3469105), (15, 2081463), (17, 1836585), (45, 693821), (51, 612195), (85, 367317), (153, 204065), (255, 122439), (765, 40813)]