21827865

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{139}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 38404800

約数和(自身を除く): 16576935

約数列:

[1, 3, 5, 15, 19, 29, 57, 87, 95, 139, 145, 285, 361, 417, 435, 551, 695, 1083, 1653, 1805, 2085, 2641, 2755, 4031, 5415, 7923, 8265, 10469, 12093, 13205, 20155, 31407, 39615, 50179, 52345, 60465, 76589, 150537, 157035, 229767, 250895, 382945, 752685, 1148835, 1455191, 4365573, 7275955, 21827865]

約数ペア:

[(1, 21827865), (3, 7275955), (5, 4365573), (15, 1455191), (19, 1148835), (29, 752685), (57, 382945), (87, 250895), (95, 229767), (139, 157035), (145, 150537), (285, 76589), (361, 60465), (417, 52345), (435, 50179), (551, 39615), (695, 31407), (1083, 20155), (1653, 13205), (1805, 12093), (2085, 10469), (2641, 8265), (2755, 7923), (4031, 5415)]