28151541

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{389}}^1$

素因数の和:466

約数の個数: 48

約数和(自身を含む): 48185280

約数和(自身を除く): 20033739

約数列:

[1, 3, 9, 11, 17, 33, 43, 51, 99, 129, 153, 187, 387, 389, 473, 561, 731, 1167, 1419, 1683, 2193, 3501, 4257, 4279, 6579, 6613, 8041, 12837, 16727, 19839, 24123, 38511, 50181, 59517, 72369, 72743, 150543, 183997, 218229, 284359, 551991, 654687, 853077, 1655973, 2559231, 3127949, 9383847, 28151541]

約数ペア:

[(1, 28151541), (3, 9383847), (9, 3127949), (11, 2559231), (17, 1655973), (33, 853077), (43, 654687), (51, 551991), (99, 284359), (129, 218229), (153, 183997), (187, 150543), (387, 72743), (389, 72369), (473, 59517), (561, 50181), (731, 38511), (1167, 24123), (1419, 19839), (1683, 16727), (2193, 12837), (3501, 8041), (4257, 6613), (4279, 6579)]