2549781

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:106

約数の個数: 48

約数和(自身を含む): 4426240

約数和(自身を除く): 1876459

約数列:

[1, 3, 9, 13, 19, 31, 37, 39, 57, 93, 111, 117, 171, 247, 279, 333, 403, 481, 589, 703, 741, 1147, 1209, 1443, 1767, 2109, 2223, 3441, 3627, 4329, 5301, 6327, 7657, 9139, 10323, 14911, 21793, 22971, 27417, 44733, 65379, 68913, 82251, 134199, 196137, 283309, 849927, 2549781]

約数ペア:

[(1, 2549781), (3, 849927), (9, 283309), (13, 196137), (19, 134199), (31, 82251), (37, 68913), (39, 65379), (57, 44733), (93, 27417), (111, 22971), (117, 21793), (171, 14911), (247, 10323), (279, 9139), (333, 7657), (403, 6327), (481, 5301), (589, 4329), (703, 3627), (741, 3441), (1147, 2223), (1209, 2109), (1443, 1767)]