489317871

素因数分解:

$3^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{173}}^1\times {\mathrm{271}}^1$

素因数の和:532

約数の個数: 48

約数和(自身を含む): 776936448

約数和(自身を除く): 287618577

約数列:

[1, 3, 7, 21, 49, 71, 147, 173, 213, 271, 497, 519, 813, 1211, 1491, 1897, 3479, 3633, 5691, 8477, 10437, 12283, 13279, 19241, 25431, 36849, 39837, 46883, 57723, 85981, 134687, 140649, 257943, 328181, 404061, 601867, 942809, 984543, 1805601, 2297267, 2828427, 3328693, 6891801, 9986079, 23300851, 69902553, 163105957, 489317871]

約数ペア:

[(1, 489317871), (3, 163105957), (7, 69902553), (21, 23300851), (49, 9986079), (71, 6891801), (147, 3328693), (173, 2828427), (213, 2297267), (271, 1805601), (497, 984543), (519, 942809), (813, 601867), (1211, 404061), (1491, 328181), (1897, 257943), (3479, 140649), (3633, 134687), (5691, 85981), (8477, 57723), (10437, 46883), (12283, 39837), (13279, 36849), (19241, 25431)]