261034749

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{491}}^1\times {\mathrm{3109}}^1$

素因数の和:3625

約数の個数: 24

約数和(自身を含む): 397831200

約数和(自身を除く): 136796451

約数列:

[1, 3, 9, 19, 57, 171, 491, 1473, 3109, 4419, 9327, 9329, 27981, 27987, 59071, 83961, 177213, 531639, 1526519, 4579557, 13738671, 29003861, 87011583, 261034749]

約数ペア:

[(1, 261034749), (3, 87011583), (9, 29003861), (19, 13738671), (57, 4579557), (171, 1526519), (491, 531639), (1473, 177213), (3109, 83961), (4419, 59071), (9327, 27987), (9329, 27981)]