28729239

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{163}}^1$

素因数の和:300

約数の個数: 48

約数和(自身を含む): 49357440

約数和(自身を除く): 20628201

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 109, 147, 163, 231, 327, 489, 539, 763, 1141, 1199, 1617, 1793, 2289, 3423, 3597, 5341, 5379, 7987, 8393, 12551, 16023, 17767, 23961, 25179, 37653, 53301, 58751, 87857, 124369, 176253, 195437, 263571, 373107, 586311, 870583, 1368059, 2611749, 4104177, 9576413, 28729239]

約数ペア:

[(1, 28729239), (3, 9576413), (7, 4104177), (11, 2611749), (21, 1368059), (33, 870583), (49, 586311), (77, 373107), (109, 263571), (147, 195437), (163, 176253), (231, 124369), (327, 87857), (489, 58751), (539, 53301), (763, 37653), (1141, 25179), (1199, 23961), (1617, 17767), (1793, 16023), (2289, 12551), (3423, 8393), (3597, 7987), (5341, 5379)]