19659507

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1$

素因数の和:323

約数の個数: 32

約数和(自身を含む): 30950400

約数和(自身を除く): 11290893

約数列:

[1, 3, 7, 21, 61, 103, 149, 183, 309, 427, 447, 721, 1043, 1281, 2163, 3129, 6283, 9089, 15347, 18849, 27267, 43981, 46041, 63623, 107429, 131943, 190869, 322287, 936167, 2808501, 6553169, 19659507]

約数ペア:

[(1, 19659507), (3, 6553169), (7, 2808501), (21, 936167), (61, 322287), (103, 190869), (149, 131943), (183, 107429), (309, 63623), (427, 46041), (447, 43981), (721, 27267), (1043, 18849), (1281, 15347), (2163, 9089), (3129, 6283)]