18372848

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4649}}^1$

素因数の和:4689

約数の個数: 40

約数和(自身を含む): 40362000

約数和(自身を除く): 21989152

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 4649, 9298, 18596, 37192, 60437, 74384, 88331, 120874, 176662, 241748, 353324, 483496, 706648, 966992, 1148303, 1413296, 2296606, 4593212, 9186424, 18372848]

約数ペア:

[(1, 18372848), (2, 9186424), (4, 4593212), (8, 2296606), (13, 1413296), (16, 1148303), (19, 966992), (26, 706648), (38, 483496), (52, 353324), (76, 241748), (104, 176662), (152, 120874), (208, 88331), (247, 74384), (304, 60437), (494, 37192), (988, 18596), (1976, 9298), (3952, 4649)]