2149785

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:166

約数の個数: 48

約数和(自身を含む): 4200768

約数和(自身を除く): 2050983

約数列:

[1, 3, 5, 9, 11, 15, 33, 43, 45, 55, 99, 101, 129, 165, 215, 303, 387, 473, 495, 505, 645, 909, 1111, 1419, 1515, 1935, 2365, 3333, 4257, 4343, 4545, 5555, 7095, 9999, 13029, 16665, 21285, 21715, 39087, 47773, 49995, 65145, 143319, 195435, 238865, 429957, 716595, 2149785]

約数ペア:

[(1, 2149785), (3, 716595), (5, 429957), (9, 238865), (11, 195435), (15, 143319), (33, 65145), (43, 49995), (45, 47773), (55, 39087), (99, 21715), (101, 21285), (129, 16665), (165, 13029), (215, 9999), (303, 7095), (387, 5555), (473, 4545), (495, 4343), (505, 4257), (645, 3333), (909, 2365), (1111, 1935), (1419, 1515)]