18821457

素因数分解:

$3^3\times {\mathrm{19}}^2\times {\mathrm{1931}}^1$

素因数の和:1978

約数の個数: 24

約数和(自身を含む): 29443680

約数和(自身を除く): 10622223

約数列:

[1, 3, 9, 19, 27, 57, 171, 361, 513, 1083, 1931, 3249, 5793, 9747, 17379, 36689, 52137, 110067, 330201, 697091, 990603, 2091273, 6273819, 18821457]

約数ペア:

[(1, 18821457), (3, 6273819), (9, 2091273), (19, 990603), (27, 697091), (57, 330201), (171, 110067), (361, 52137), (513, 36689), (1083, 17379), (1931, 9747), (3249, 5793)]