19973547

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{773}}^1$

素因数の和:825

約数の個数: 40

約数和(自身を含む): 33715440

約数和(自身を除く): 13741893

約数列:

[1, 3, 9, 11, 27, 29, 33, 81, 87, 99, 261, 297, 319, 773, 783, 891, 957, 2319, 2349, 2871, 6957, 8503, 8613, 20871, 22417, 25509, 25839, 62613, 67251, 76527, 201753, 229581, 246587, 605259, 688743, 739761, 1815777, 2219283, 6657849, 19973547]

約数ペア:

[(1, 19973547), (3, 6657849), (9, 2219283), (11, 1815777), (27, 739761), (29, 688743), (33, 605259), (81, 246587), (87, 229581), (99, 201753), (261, 76527), (297, 67251), (319, 62613), (773, 25839), (783, 25509), (891, 22417), (957, 20871), (2319, 8613), (2349, 8503), (2871, 6957)]