19810308

素因数分解:

$2^2\times 3^1\times 7^3\times {\mathrm{4813}}^1$

素因数の和:4841

約数の個数: 48

約数和(自身を含む): 53916800

約数和(自身を除く): 34106492

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 294, 343, 588, 686, 1029, 1372, 2058, 4116, 4813, 9626, 14439, 19252, 28878, 33691, 57756, 67382, 101073, 134764, 202146, 235837, 404292, 471674, 707511, 943348, 1415022, 1650859, 2830044, 3301718, 4952577, 6603436, 9905154, 19810308]

約数ペア:

[(1, 19810308), (2, 9905154), (3, 6603436), (4, 4952577), (6, 3301718), (7, 2830044), (12, 1650859), (14, 1415022), (21, 943348), (28, 707511), (42, 471674), (49, 404292), (84, 235837), (98, 202146), (147, 134764), (196, 101073), (294, 67382), (343, 57756), (588, 33691), (686, 28878), (1029, 19252), (1372, 14439), (2058, 9626), (4116, 4813)]