28811277

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1$

素因数の和:123

約数の個数: 72

約数和(自身を含む): 51723360

約数和(自身を除く): 22912083

約数列:

[1, 3, 9, 11, 17, 19, 33, 51, 53, 57, 99, 153, 159, 171, 187, 209, 289, 323, 477, 561, 583, 627, 867, 901, 969, 1007, 1683, 1749, 1881, 2601, 2703, 2907, 3021, 3179, 3553, 5247, 5491, 8109, 9063, 9537, 9911, 10659, 11077, 15317, 16473, 17119, 28611, 29733, 31977, 33231, 45951, 49419, 51357, 60401, 89199, 99693, 137853, 154071, 168487, 181203, 188309, 291023, 505461, 543609, 564927, 873069, 1516383, 1694781, 2619207, 3201253, 9603759, 28811277]

約数ペア:

[(1, 28811277), (3, 9603759), (9, 3201253), (11, 2619207), (17, 1694781), (19, 1516383), (33, 873069), (51, 564927), (53, 543609), (57, 505461), (99, 291023), (153, 188309), (159, 181203), (171, 168487), (187, 154071), (209, 137853), (289, 99693), (323, 89199), (477, 60401), (561, 51357), (583, 49419), (627, 45951), (867, 33231), (901, 31977), (969, 29733), (1007, 28611), (1683, 17119), (1749, 16473), (1881, 15317), (2601, 11077), (2703, 10659), (2907, 9911), (3021, 9537), (3179, 9063), (3553, 8109), (5247, 5491)]