28293993

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{193}}^1$

素因数の和:398

約数の個数: 48

約数和(自身を含む): 50843520

約数和(自身を除く): 22549527

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 179, 193, 273, 537, 579, 819, 1253, 1351, 1611, 1737, 2327, 2509, 3759, 4053, 6981, 7527, 11277, 12159, 16289, 17563, 20943, 22581, 34547, 48867, 52689, 103641, 146601, 158067, 241829, 310923, 449111, 725487, 1347333, 2176461, 3143777, 4041999, 9431331, 28293993]

約数ペア:

[(1, 28293993), (3, 9431331), (7, 4041999), (9, 3143777), (13, 2176461), (21, 1347333), (39, 725487), (63, 449111), (91, 310923), (117, 241829), (179, 158067), (193, 146601), (273, 103641), (537, 52689), (579, 48867), (819, 34547), (1253, 22581), (1351, 20943), (1611, 17563), (1737, 16289), (2327, 12159), (2509, 11277), (3759, 7527), (4053, 6981)]