81139665

素因数分解:

$3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{191}}^1\times {\mathrm{223}}^1$

素因数の和:549

約数の個数: 32

約数和(自身を含む): 132120576

約数和(自身を除く): 50980911

約数列:

[1, 3, 5, 15, 127, 191, 223, 381, 573, 635, 669, 955, 1115, 1905, 2865, 3345, 24257, 28321, 42593, 72771, 84963, 121285, 127779, 141605, 212965, 363855, 424815, 638895, 5409311, 16227933, 27046555, 81139665]

約数ペア:

[(1, 81139665), (3, 27046555), (5, 16227933), (15, 5409311), (127, 638895), (191, 424815), (223, 363855), (381, 212965), (573, 141605), (635, 127779), (669, 121285), (955, 84963), (1115, 72771), (1905, 42593), (2865, 28321), (3345, 24257)]