28730493

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{397}}^1$

素因数の和:474

約数の個数: 48

約数和(自身を含む): 49173696

約数和(自身を除く): 20443203

約数列:

[1, 3, 9, 11, 17, 33, 43, 51, 99, 129, 153, 187, 387, 397, 473, 561, 731, 1191, 1419, 1683, 2193, 3573, 4257, 4367, 6579, 6749, 8041, 13101, 17071, 20247, 24123, 39303, 51213, 60741, 72369, 74239, 153639, 187781, 222717, 290207, 563343, 668151, 870621, 1690029, 2611863, 3192277, 9576831, 28730493]

約数ペア:

[(1, 28730493), (3, 9576831), (9, 3192277), (11, 2611863), (17, 1690029), (33, 870621), (43, 668151), (51, 563343), (99, 290207), (129, 222717), (153, 187781), (187, 153639), (387, 74239), (397, 72369), (473, 60741), (561, 51213), (731, 39303), (1191, 24123), (1419, 20247), (1683, 17071), (2193, 13101), (3573, 8041), (4257, 6749), (4367, 6579)]