680409

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1$

素因数の和:221

約数の個数: 24

約数和(自身を含む): 1085760

約数和(自身を除く): 405351

約数列:

[1, 3, 9, 19, 23, 57, 69, 171, 173, 207, 437, 519, 1311, 1557, 3287, 3933, 3979, 9861, 11937, 29583, 35811, 75601, 226803, 680409]

約数ペア:

[(1, 680409), (3, 226803), (9, 75601), (19, 35811), (23, 29583), (57, 11937), (69, 9861), (171, 3979), (173, 3933), (207, 3287), (437, 1557), (519, 1311)]