18939879

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4357}}^1$

素因数の和:4396

約数の個数: 32

約数和(自身を含む): 33469440

約数和(自身を除く): 14529561

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 161, 189, 207, 483, 621, 1449, 4347, 4357, 13071, 30499, 39213, 91497, 100211, 117639, 274491, 300633, 701477, 823473, 901899, 2104431, 2705697, 6313293, 18939879]

約数ペア:

[(1, 18939879), (3, 6313293), (7, 2705697), (9, 2104431), (21, 901899), (23, 823473), (27, 701477), (63, 300633), (69, 274491), (161, 117639), (189, 100211), (207, 91497), (483, 39213), (621, 30499), (1449, 13071), (4347, 4357)]