19740009

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:249

約数の個数: 32

約数和(自身を含む): 29082240

約数和(自身を除く): 9342231

約数列:

[1, 3, 17, 51, 53, 67, 109, 159, 201, 327, 901, 1139, 1853, 2703, 3417, 3551, 5559, 5777, 7303, 10653, 17331, 21909, 60367, 98209, 124151, 181101, 294627, 372453, 387059, 1161177, 6580003, 19740009]

約数ペア:

[(1, 19740009), (3, 6580003), (17, 1161177), (51, 387059), (53, 372453), (67, 294627), (109, 181101), (159, 124151), (201, 98209), (327, 60367), (901, 21909), (1139, 17331), (1853, 10653), (2703, 7303), (3417, 5777), (3551, 5559)]