641079

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1$

素因数の和:211

約数の個数: 24

約数和(自身を含む): 1023360

約数和(自身を除く): 382281

約数列:

[1, 3, 9, 19, 23, 57, 69, 163, 171, 207, 437, 489, 1311, 1467, 3097, 3749, 3933, 9291, 11247, 27873, 33741, 71231, 213693, 641079]

約数ペア:

[(1, 641079), (3, 213693), (9, 71231), (19, 33741), (23, 27873), (57, 11247), (69, 9291), (163, 3933), (171, 3749), (207, 3097), (437, 1467), (489, 1311)]