211318905

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{12347}}^1$

素因数の和:12525

約数の個数: 32

約数和(自身を含む): 388813824

約数和(自身を除く): 177494919

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 163, 489, 815, 1141, 2445, 3423, 5705, 12347, 17115, 37041, 61735, 86429, 185205, 259287, 432145, 1296435, 2012561, 6037683, 10062805, 14087927, 30188415, 42263781, 70439635, 211318905]

約数ペア:

[(1, 211318905), (3, 70439635), (5, 42263781), (7, 30188415), (15, 14087927), (21, 10062805), (35, 6037683), (105, 2012561), (163, 1296435), (489, 432145), (815, 259287), (1141, 185205), (2445, 86429), (3423, 61735), (5705, 37041), (12347, 17115)]