19979904

素因数分解:

$2^7\times 3^1\times 7^1\times {\mathrm{7433}}^1$

素因数の和:7457

約数の個数: 64

約数和(自身を含む): 60661440

約数和(自身を除く): 40681536

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 84, 96, 112, 128, 168, 192, 224, 336, 384, 448, 672, 896, 1344, 2688, 7433, 14866, 22299, 29732, 44598, 52031, 59464, 89196, 104062, 118928, 156093, 178392, 208124, 237856, 312186, 356784, 416248, 475712, 624372, 713568, 832496, 951424, 1248744, 1427136, 1664992, 2497488, 2854272, 3329984, 4994976, 6659968, 9989952, 19979904]

約数ペア:

[(1, 19979904), (2, 9989952), (3, 6659968), (4, 4994976), (6, 3329984), (7, 2854272), (8, 2497488), (12, 1664992), (14, 1427136), (16, 1248744), (21, 951424), (24, 832496), (28, 713568), (32, 624372), (42, 475712), (48, 416248), (56, 356784), (64, 312186), (84, 237856), (96, 208124), (112, 178392), (128, 156093), (168, 118928), (192, 104062), (224, 89196), (336, 59464), (384, 52031), (448, 44598), (672, 29732), (896, 22299), (1344, 14866), (2688, 7433)]