21362517

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{277}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 36429120

約数和(自身を除く): 15066603

約数列:

[1, 3, 9, 11, 19, 33, 41, 57, 99, 123, 171, 209, 277, 369, 451, 627, 779, 831, 1353, 1881, 2337, 2493, 3047, 4059, 5263, 7011, 8569, 9141, 11357, 15789, 25707, 27423, 34071, 47367, 57893, 77121, 102213, 124927, 173679, 215783, 374781, 521037, 647349, 1124343, 1942047, 2373613, 7120839, 21362517]

約数ペア:

[(1, 21362517), (3, 7120839), (9, 2373613), (11, 1942047), (19, 1124343), (33, 647349), (41, 521037), (57, 374781), (99, 215783), (123, 173679), (171, 124927), (209, 102213), (277, 77121), (369, 57893), (451, 47367), (627, 34071), (779, 27423), (831, 25707), (1353, 15789), (1881, 11357), (2337, 9141), (2493, 8569), (3047, 7011), (4059, 5263)]