18192993

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{647}}^1$

素因数の和:773

約数の個数: 32

約数和(自身を含む): 30191616

約数和(自身を除く): 11998623

約数列:

[1, 3, 7, 13, 21, 39, 91, 103, 273, 309, 647, 721, 1339, 1941, 2163, 4017, 4529, 8411, 9373, 13587, 25233, 28119, 58877, 66641, 176631, 199923, 466487, 866333, 1399461, 2598999, 6064331, 18192993]

約数ペア:

[(1, 18192993), (3, 6064331), (7, 2598999), (13, 1399461), (21, 866333), (39, 466487), (91, 199923), (103, 176631), (273, 66641), (309, 58877), (647, 28119), (721, 25233), (1339, 13587), (1941, 9373), (2163, 8411), (4017, 4529)]