21395610

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{727}}^1$

素因数の和:852

約数の個数: 64

約数和(自身を含む): 57657600

約数和(自身を除く): 36261990

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 109, 135, 218, 270, 327, 545, 654, 727, 981, 1090, 1454, 1635, 1962, 2181, 2943, 3270, 3635, 4362, 4905, 5886, 6543, 7270, 9810, 10905, 13086, 14715, 19629, 21810, 29430, 32715, 39258, 65430, 79243, 98145, 158486, 196290, 237729, 396215, 475458, 713187, 792430, 1188645, 1426374, 2139561, 2377290, 3565935, 4279122, 7131870, 10697805, 21395610]

約数ペア:

[(1, 21395610), (2, 10697805), (3, 7131870), (5, 4279122), (6, 3565935), (9, 2377290), (10, 2139561), (15, 1426374), (18, 1188645), (27, 792430), (30, 713187), (45, 475458), (54, 396215), (90, 237729), (109, 196290), (135, 158486), (218, 98145), (270, 79243), (327, 65430), (545, 39258), (654, 32715), (727, 29430), (981, 21810), (1090, 19629), (1454, 14715), (1635, 13086), (1962, 10905), (2181, 9810), (2943, 7270), (3270, 6543), (3635, 5886), (4362, 4905)]