23121189

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:179

約数の個数: 72

約数和(自身を含む): 43363320

約数和(自身を除く): 20242131

約数列:

[1, 3, 7, 9, 13, 21, 37, 39, 49, 63, 91, 109, 111, 117, 147, 259, 273, 327, 333, 441, 481, 637, 763, 777, 819, 981, 1417, 1443, 1813, 1911, 2289, 2331, 3367, 4033, 4251, 4329, 5341, 5439, 5733, 6867, 9919, 10101, 12099, 12753, 16023, 16317, 23569, 28231, 29757, 30303, 36297, 48069, 52429, 69433, 70707, 84693, 89271, 157287, 197617, 208299, 212121, 254079, 367003, 471861, 592851, 624897, 1101009, 1778553, 2569021, 3303027, 7707063, 23121189]

約数ペア:

[(1, 23121189), (3, 7707063), (7, 3303027), (9, 2569021), (13, 1778553), (21, 1101009), (37, 624897), (39, 592851), (49, 471861), (63, 367003), (91, 254079), (109, 212121), (111, 208299), (117, 197617), (147, 157287), (259, 89271), (273, 84693), (327, 70707), (333, 69433), (441, 52429), (481, 48069), (637, 36297), (763, 30303), (777, 29757), (819, 28231), (981, 23569), (1417, 16317), (1443, 16023), (1813, 12753), (1911, 12099), (2289, 10101), (2331, 9919), (3367, 6867), (4033, 5733), (4251, 5439), (4329, 5341)]