165015565

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{20981}}^1$

素因数の和:21021

約数の個数: 24

約数和(自身を含む): 234410904

約数和(自身を除く): 69395339

約数列:

[1, 5, 11, 13, 55, 65, 121, 143, 605, 715, 1573, 7865, 20981, 104905, 230791, 272753, 1153955, 1363765, 2538701, 3000283, 12693505, 15001415, 33003113, 165015565]

約数ペア:

[(1, 165015565), (5, 33003113), (11, 15001415), (13, 12693505), (55, 3000283), (65, 2538701), (121, 1363765), (143, 1153955), (605, 272753), (715, 230791), (1573, 104905), (7865, 20981)]