20453418

素因数分解:

$2^1\times 3^3\times {\mathrm{521}}^1\times {\mathrm{727}}^1$

素因数の和:1259

約数の個数: 32

約数和(自身を含む): 45601920

約数和(自身を除く): 25148502

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 521, 727, 1042, 1454, 1563, 2181, 3126, 4362, 4689, 6543, 9378, 13086, 14067, 19629, 28134, 39258, 378767, 757534, 1136301, 2272602, 3408903, 6817806, 10226709, 20453418]

約数ペア:

[(1, 20453418), (2, 10226709), (3, 6817806), (6, 3408903), (9, 2272602), (18, 1136301), (27, 757534), (54, 378767), (521, 39258), (727, 28134), (1042, 19629), (1454, 14067), (1563, 13086), (2181, 9378), (3126, 6543), (4362, 4689)]