21338724

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{1163}}^1$

素因数の和:1320

約数の個数: 48

約数和(自身を含む): 54754560

約数和(自身を除く): 33415836

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 139, 278, 417, 556, 834, 1163, 1529, 1668, 2326, 3058, 3489, 4587, 4652, 6116, 6978, 9174, 12793, 13956, 18348, 25586, 38379, 51172, 76758, 153516, 161657, 323314, 484971, 646628, 969942, 1778227, 1939884, 3556454, 5334681, 7112908, 10669362, 21338724]

約数ペア:

[(1, 21338724), (2, 10669362), (3, 7112908), (4, 5334681), (6, 3556454), (11, 1939884), (12, 1778227), (22, 969942), (33, 646628), (44, 484971), (66, 323314), (132, 161657), (139, 153516), (278, 76758), (417, 51172), (556, 38379), (834, 25586), (1163, 18348), (1529, 13956), (1668, 12793), (2326, 9174), (3058, 6978), (3489, 6116), (4587, 4652)]