21051252

素因数分解:

$2^2\times 3^4\times {\mathrm{43}}^1\times {\mathrm{1511}}^1$

素因数の和:1570

約数の個数: 60

約数和(自身を含む): 56349216

約数和(自身を除く): 35297964

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 43, 54, 81, 86, 108, 129, 162, 172, 258, 324, 387, 516, 774, 1161, 1511, 1548, 2322, 3022, 3483, 4533, 4644, 6044, 6966, 9066, 13599, 13932, 18132, 27198, 40797, 54396, 64973, 81594, 122391, 129946, 163188, 194919, 244782, 259892, 389838, 489564, 584757, 779676, 1169514, 1754271, 2339028, 3508542, 5262813, 7017084, 10525626, 21051252]

約数ペア:

[(1, 21051252), (2, 10525626), (3, 7017084), (4, 5262813), (6, 3508542), (9, 2339028), (12, 1754271), (18, 1169514), (27, 779676), (36, 584757), (43, 489564), (54, 389838), (81, 259892), (86, 244782), (108, 194919), (129, 163188), (162, 129946), (172, 122391), (258, 81594), (324, 64973), (387, 54396), (516, 40797), (774, 27198), (1161, 18132), (1511, 13932), (1548, 13599), (2322, 9066), (3022, 6966), (3483, 6044), (4533, 4644)]