218359239

素因数分解:

$3^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{18803}}^1$

素因数の和:18899

約数の個数: 24

約数和(自身を含む): 342984960

約数和(自身を除く): 124625721

約数列:

[1, 3, 7, 21, 49, 79, 147, 237, 553, 1659, 3871, 11613, 18803, 56409, 131621, 394863, 921347, 1485437, 2764041, 4456311, 10398059, 31194177, 72786413, 218359239]

約数ペア:

[(1, 218359239), (3, 72786413), (7, 31194177), (21, 10398059), (49, 4456311), (79, 2764041), (147, 1485437), (237, 921347), (553, 394863), (1659, 131621), (3871, 56409), (11613, 18803)]