18728561985

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{739}}^1\times {\mathrm{241363}}^1$

素因数の和:242117

約数の個数: 32

約数和(自身を含む): 34292997120

約数和(自身を除く): 15564435135

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 739, 2217, 3695, 5173, 11085, 15519, 25865, 77595, 241363, 724089, 1206815, 1689541, 3620445, 5068623, 8447705, 25343115, 178367257, 535101771, 891836285, 1248570799, 2675508855, 3745712397, 6242853995, 18728561985]

約数ペア:

[(1, 18728561985), (3, 6242853995), (5, 3745712397), (7, 2675508855), (15, 1248570799), (21, 891836285), (35, 535101771), (105, 178367257), (739, 25343115), (2217, 8447705), (3695, 5068623), (5173, 3620445), (11085, 1689541), (15519, 1206815), (25865, 724089), (77595, 241363)]