1390401

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1$

素因数の和:245

約数の個数: 24

約数和(自身を含む): 2171520

約数和(自身を除く): 781119

約数列:

[1, 3, 9, 19, 47, 57, 141, 171, 173, 423, 519, 893, 1557, 2679, 3287, 8037, 8131, 9861, 24393, 29583, 73179, 154489, 463467, 1390401]

約数ペア:

[(1, 1390401), (3, 463467), (9, 154489), (19, 73179), (47, 29583), (57, 24393), (141, 9861), (171, 8131), (173, 8037), (423, 3287), (519, 2679), (893, 1557)]