18675951

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:359

約数の個数: 32

約数和(自身を含む): 29568000

約数和(自身を除く): 10892049

約数列:

[1, 3, 7, 21, 41, 109, 123, 199, 287, 327, 597, 763, 861, 1393, 2289, 4179, 4469, 8159, 13407, 21691, 24477, 31283, 57113, 65073, 93849, 151837, 171339, 455511, 889331, 2667993, 6225317, 18675951]

約数ペア:

[(1, 18675951), (3, 6225317), (7, 2667993), (21, 889331), (41, 455511), (109, 171339), (123, 151837), (199, 93849), (287, 65073), (327, 57113), (597, 31283), (763, 24477), (861, 21691), (1393, 13407), (2289, 8159), (4179, 4469)]