20857844

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1511}}^1$

素因数の和:1568

約数の個数: 48

約数和(自身を含む): 45722880

約数和(自身を除く): 24865036

約数列:

[1, 2, 4, 7, 14, 17, 28, 29, 34, 58, 68, 116, 119, 203, 238, 406, 476, 493, 812, 986, 1511, 1972, 3022, 3451, 6044, 6902, 10577, 13804, 21154, 25687, 42308, 43819, 51374, 87638, 102748, 175276, 179809, 306733, 359618, 613466, 719236, 744923, 1226932, 1489846, 2979692, 5214461, 10428922, 20857844]

約数ペア:

[(1, 20857844), (2, 10428922), (4, 5214461), (7, 2979692), (14, 1489846), (17, 1226932), (28, 744923), (29, 719236), (34, 613466), (58, 359618), (68, 306733), (116, 179809), (119, 175276), (203, 102748), (238, 87638), (406, 51374), (476, 43819), (493, 42308), (812, 25687), (986, 21154), (1511, 13804), (1972, 10577), (3022, 6902), (3451, 6044)]