247432905

素因数分解:

$3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{61781}}^1$

素因数の和:61881

約数の個数: 24

約数和(自身を含む): 433709640

約数和(自身を除く): 186276735

約数列:

[1, 3, 5, 9, 15, 45, 89, 267, 445, 801, 1335, 4005, 61781, 185343, 308905, 556029, 926715, 2780145, 5498509, 16495527, 27492545, 49486581, 82477635, 247432905]

約数ペア:

[(1, 247432905), (3, 82477635), (5, 49486581), (9, 27492545), (15, 16495527), (45, 5498509), (89, 2780145), (267, 926715), (445, 556029), (801, 308905), (1335, 185343), (4005, 61781)]