20016918

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{547}}^1$

素因数の和:681

約数の個数: 48

約数和(自身を含む): 46163520

約数和(自身を除く): 26146602

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 107, 114, 171, 214, 321, 342, 547, 642, 963, 1094, 1641, 1926, 2033, 3282, 4066, 4923, 6099, 9846, 10393, 12198, 18297, 20786, 31179, 36594, 58529, 62358, 93537, 117058, 175587, 187074, 351174, 526761, 1053522, 1112051, 2224102, 3336153, 6672306, 10008459, 20016918]

約数ペア:

[(1, 20016918), (2, 10008459), (3, 6672306), (6, 3336153), (9, 2224102), (18, 1112051), (19, 1053522), (38, 526761), (57, 351174), (107, 187074), (114, 175587), (171, 117058), (214, 93537), (321, 62358), (342, 58529), (547, 36594), (642, 31179), (963, 20786), (1094, 18297), (1641, 12198), (1926, 10393), (2033, 9846), (3282, 6099), (4066, 4923)]