21080412

素因数分解:

$2^2\times 3^4\times {\mathrm{65063}}^1$

素因数の和:65079

約数の個数: 30

約数和(自身を含む): 55109208

約数和(自身を除く): 34028796

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 65063, 130126, 195189, 260252, 390378, 585567, 780756, 1171134, 1756701, 2342268, 3513402, 5270103, 7026804, 10540206, 21080412]

約数ペア:

[(1, 21080412), (2, 10540206), (3, 7026804), (4, 5270103), (6, 3513402), (9, 2342268), (12, 1756701), (18, 1171134), (27, 780756), (36, 585567), (54, 390378), (81, 260252), (108, 195189), (162, 130126), (324, 65063)]