19789165

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{653}}^1$

素因数の和:717

約数の個数: 32

約数和(自身を含む): 28252800

約数和(自身を除く): 8463635

約数列:

[1, 5, 11, 19, 29, 55, 95, 145, 209, 319, 551, 653, 1045, 1595, 2755, 3265, 6061, 7183, 12407, 18937, 30305, 35915, 62035, 94685, 136477, 208307, 359803, 682385, 1041535, 1799015, 3957833, 19789165]

約数ペア:

[(1, 19789165), (5, 3957833), (11, 1799015), (19, 1041535), (29, 682385), (55, 359803), (95, 208307), (145, 136477), (209, 94685), (319, 62035), (551, 35915), (653, 30305), (1045, 18937), (1595, 12407), (2755, 7183), (3265, 6061)]