281497887

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^2\times {\mathrm{67}}^1$

素因数の和:189

約数の個数: 72

約数和(自身を含む): 477614592

約数和(自身を除く): 196116705

約数列:

[1, 3, 9, 11, 31, 33, 37, 67, 93, 99, 111, 201, 279, 333, 341, 407, 603, 737, 1023, 1147, 1221, 1369, 2077, 2211, 2479, 3069, 3441, 3663, 4107, 6231, 6633, 7437, 10323, 12321, 12617, 15059, 18693, 22311, 22847, 27269, 37851, 42439, 45177, 68541, 76849, 81807, 91723, 113553, 127317, 135531, 205623, 230547, 245421, 275169, 381951, 466829, 691641, 825507, 845339, 1008953, 1400487, 2536017, 2843413, 3026859, 4201461, 7608051, 8530239, 9080577, 25590717, 31277543, 93832629, 281497887]

約数ペア:

[(1, 281497887), (3, 93832629), (9, 31277543), (11, 25590717), (31, 9080577), (33, 8530239), (37, 7608051), (67, 4201461), (93, 3026859), (99, 2843413), (111, 2536017), (201, 1400487), (279, 1008953), (333, 845339), (341, 825507), (407, 691641), (603, 466829), (737, 381951), (1023, 275169), (1147, 245421), (1221, 230547), (1369, 205623), (2077, 135531), (2211, 127317), (2479, 113553), (3069, 91723), (3441, 81807), (3663, 76849), (4107, 68541), (6231, 45177), (6633, 42439), (7437, 37851), (10323, 27269), (12321, 22847), (12617, 22311), (15059, 18693)]