621315261

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^2\times {\mathrm{103}}^1\times {\mathrm{181}}^1$

素因数の和:343

約数の個数: 72

約数和(自身を含む): 1088587136

約数和(自身を除く): 467271875

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 103, 161, 181, 207, 309, 483, 529, 543, 721, 927, 1267, 1449, 1587, 1629, 2163, 2369, 3703, 3801, 4163, 4761, 6489, 7107, 11109, 11403, 12489, 16583, 18643, 21321, 29141, 33327, 37467, 49749, 54487, 55929, 87423, 95749, 130501, 149247, 163461, 167787, 262269, 287247, 381409, 391503, 428789, 490383, 670243, 861741, 1144227, 1174509, 1286367, 2010729, 3001523, 3432681, 3859101, 6032187, 9004569, 9862147, 27013707, 29586441, 69035029, 88759323, 207105087, 621315261]

約数ペア:

[(1, 621315261), (3, 207105087), (7, 88759323), (9, 69035029), (21, 29586441), (23, 27013707), (63, 9862147), (69, 9004569), (103, 6032187), (161, 3859101), (181, 3432681), (207, 3001523), (309, 2010729), (483, 1286367), (529, 1174509), (543, 1144227), (721, 861741), (927, 670243), (1267, 490383), (1449, 428789), (1587, 391503), (1629, 381409), (2163, 287247), (2369, 262269), (3703, 167787), (3801, 163461), (4163, 149247), (4761, 130501), (6489, 95749), (7107, 87423), (11109, 55929), (11403, 54487), (12489, 49749), (16583, 37467), (18643, 33327), (21321, 29141)]