17906189

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:201

約数の個数: 32

約数和(自身を含む): 22978560

約数和(自身を除く): 5072371

約数列:

[1, 7, 19, 31, 43, 101, 133, 217, 301, 589, 707, 817, 1333, 1919, 3131, 4123, 4343, 5719, 9331, 13433, 21917, 25327, 30401, 59489, 82517, 134633, 177289, 416423, 577619, 942431, 2558027, 17906189]

約数ペア:

[(1, 17906189), (7, 2558027), (19, 942431), (31, 577619), (43, 416423), (101, 177289), (133, 134633), (217, 82517), (301, 59489), (589, 30401), (707, 25327), (817, 21917), (1333, 13433), (1919, 9331), (3131, 5719), (4123, 4343)]