28712211

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1$

素因数の和:248

約数の個数: 48

約数和(自身を含む): 46475520

約数和(自身を除く): 17763309

約数列:

[1, 3, 11, 19, 23, 33, 57, 69, 121, 181, 209, 253, 363, 437, 543, 627, 759, 1311, 1991, 2299, 2783, 3439, 4163, 4807, 5973, 6897, 8349, 10317, 12489, 14421, 21901, 37829, 45793, 52877, 65703, 79097, 113487, 137379, 158631, 237291, 416119, 503723, 870067, 1248357, 1511169, 2610201, 9570737, 28712211]

約数ペア:

[(1, 28712211), (3, 9570737), (11, 2610201), (19, 1511169), (23, 1248357), (33, 870067), (57, 503723), (69, 416119), (121, 237291), (181, 158631), (209, 137379), (253, 113487), (363, 79097), (437, 65703), (543, 52877), (627, 45793), (759, 37829), (1311, 21901), (1991, 14421), (2299, 12489), (2783, 10317), (3439, 8349), (4163, 6897), (4807, 5973)]