21218436

素因数分解:

$2^2\times 3^4\times {\mathrm{43}}^1\times {\mathrm{1523}}^1$

素因数の和:1582

約数の個数: 60

約数和(自身を含む): 56796432

約数和(自身を除く): 35577996

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, 1523, 1548, 2322, 3046, 3483, 4569, 4644, 6092, 6966, 9138, 13707, 13932, 18276, 27414, 41121, 54828, 65489, 82242, 123363, 130978, 164484, 196467, 246726, 261956, 392934, 493452, 589401, 785868, 1178802, 1768203, 2357604, 3536406, 5304609, 7072812, 10609218, 21218436]

約数ペア:

[(1, 21218436), (2, 10609218), (3, 7072812), (4, 5304609), (6, 3536406), (9, 2357604), (12, 1768203), (18, 1178802), (27, 785868), (36, 589401), (43, 493452), (54, 392934), (81, 261956), (86, 246726), (108, 196467), (129, 164484), (162, 130978), (172, 123363), (258, 82242), (324, 65489), (387, 54828), (516, 41121), (774, 27414), (1161, 18276), (1523, 13932), (1548, 13707), (2322, 9138), (3046, 6966), (3483, 6092), (4569, 4644)]