19745856

素因数分解:

$2^6\times 3^4\times {\mathrm{13}}^1\times {\mathrm{293}}^1$

素因数の和:330

約数の個数: 140

約数和(自身を含む): 63250572

約数和(自身を除く): 43504716

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 32, 36, 39, 48, 52, 54, 64, 72, 78, 81, 96, 104, 108, 117, 144, 156, 162, 192, 208, 216, 234, 288, 293, 312, 324, 351, 416, 432, 468, 576, 586, 624, 648, 702, 832, 864, 879, 936, 1053, 1172, 1248, 1296, 1404, 1728, 1758, 1872, 2106, 2344, 2496, 2592, 2637, 2808, 3516, 3744, 3809, 4212, 4688, 5184, 5274, 5616, 7032, 7488, 7618, 7911, 8424, 9376, 10548, 11232, 11427, 14064, 15236, 15822, 16848, 18752, 21096, 22464, 22854, 23733, 28128, 30472, 31644, 33696, 34281, 42192, 45708, 47466, 56256, 60944, 63288, 67392, 68562, 84384, 91416, 94932, 102843, 121888, 126576, 137124, 168768, 182832, 189864, 205686, 243776, 253152, 274248, 308529, 365664, 379728, 411372, 506304, 548496, 617058, 731328, 759456, 822744, 1096992, 1234116, 1518912, 1645488, 2193984, 2468232, 3290976, 4936464, 6581952, 9872928, 19745856]

約数ペア:

[(1, 19745856), (2, 9872928), (3, 6581952), (4, 4936464), (6, 3290976), (8, 2468232), (9, 2193984), (12, 1645488), (13, 1518912), (16, 1234116), (18, 1096992), (24, 822744), (26, 759456), (27, 731328), (32, 617058), (36, 548496), (39, 506304), (48, 411372), (52, 379728), (54, 365664), (64, 308529), (72, 274248), (78, 253152), (81, 243776), (96, 205686), (104, 189864), (108, 182832), (117, 168768), (144, 137124), (156, 126576), (162, 121888), (192, 102843), (208, 94932), (216, 91416), (234, 84384), (288, 68562), (293, 67392), (312, 63288), (324, 60944), (351, 56256), (416, 47466), (432, 45708), (468, 42192), (576, 34281), (586, 33696), (624, 31644), (648, 30472), (702, 28128), (832, 23733), (864, 22854), (879, 22464), (936, 21096), (1053, 18752), (1172, 16848), (1248, 15822), (1296, 15236), (1404, 14064), (1728, 11427), (1758, 11232), (1872, 10548), (2106, 9376), (2344, 8424), (2496, 7911), (2592, 7618), (2637, 7488), (2808, 7032), (3516, 5616), (3744, 5274), (3809, 5184), (4212, 4688)]