287398503

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{491}}^1$

素因数の和:689

約数の個数: 64

約数和(自身を含む): 516403200

約数和(自身を除く): 229004697

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 133, 163, 171, 189, 399, 489, 491, 513, 1141, 1197, 1467, 1473, 3097, 3423, 3437, 3591, 4401, 4419, 9291, 9329, 10269, 10311, 13257, 21679, 27873, 27987, 30807, 30933, 65037, 65303, 80033, 83619, 83961, 92799, 195111, 195909, 240099, 251883, 560231, 585333, 587727, 720297, 1520627, 1680693, 1763181, 2160891, 4561881, 5042079, 10644389, 13685643, 15126237, 31933167, 41056929, 95799501, 287398503]

約数ペア:

[(1, 287398503), (3, 95799501), (7, 41056929), (9, 31933167), (19, 15126237), (21, 13685643), (27, 10644389), (57, 5042079), (63, 4561881), (133, 2160891), (163, 1763181), (171, 1680693), (189, 1520627), (399, 720297), (489, 587727), (491, 585333), (513, 560231), (1141, 251883), (1197, 240099), (1467, 195909), (1473, 195111), (3097, 92799), (3423, 83961), (3437, 83619), (3591, 80033), (4401, 65303), (4419, 65037), (9291, 30933), (9329, 30807), (10269, 27987), (10311, 27873), (13257, 21679)]