21568284

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{13933}}^1$

素因数の和:13986

約数の個数: 36

約数和(自身を含む): 55791736

約数和(自身を除く): 34223452

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 258, 387, 516, 774, 1548, 13933, 27866, 41799, 55732, 83598, 125397, 167196, 250794, 501588, 599119, 1198238, 1797357, 2396476, 3594714, 5392071, 7189428, 10784142, 21568284]

約数ペア:

[(1, 21568284), (2, 10784142), (3, 7189428), (4, 5392071), (6, 3594714), (9, 2396476), (12, 1797357), (18, 1198238), (36, 599119), (43, 501588), (86, 250794), (129, 167196), (172, 125397), (258, 83598), (387, 55732), (516, 41799), (774, 27866), (1548, 13933)]