21281526

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{168901}}^1$

素因数の和:168916

約数の個数: 24

約数和(自身を含む): 52697424

約数和(自身を除く): 31415898

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 168901, 337802, 506703, 1013406, 1182307, 1520109, 2364614, 3040218, 3546921, 7093842, 10640763, 21281526]

約数ペア:

[(1, 21281526), (2, 10640763), (3, 7093842), (6, 3546921), (7, 3040218), (9, 2364614), (14, 1520109), (18, 1182307), (21, 1013406), (42, 506703), (63, 337802), (126, 168901)]