18215445

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{911}}^1$

素因数の和:993

約数の個数: 32

約数和(自身を含む): 30818304

約数和(自身を除く): 12602859

約数列:

[1, 3, 5, 15, 31, 43, 93, 129, 155, 215, 465, 645, 911, 1333, 2733, 3999, 4555, 6665, 13665, 19995, 28241, 39173, 84723, 117519, 141205, 195865, 423615, 587595, 1214363, 3643089, 6071815, 18215445]

約数ペア:

[(1, 18215445), (3, 6071815), (5, 3643089), (15, 1214363), (31, 587595), (43, 423615), (93, 195865), (129, 141205), (155, 117519), (215, 84723), (465, 39173), (645, 28241), (911, 19995), (1333, 13665), (2733, 6665), (3999, 4555)]