20727518

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2687}}^1$

素因数の和:2744

約数の個数: 32

約数和(自身を含む): 38707200

約数和(自身を除く): 17979682

約数列:

[1, 2, 7, 14, 19, 29, 38, 58, 133, 203, 266, 406, 551, 1102, 2687, 3857, 5374, 7714, 18809, 37618, 51053, 77923, 102106, 155846, 357371, 545461, 714742, 1090922, 1480537, 2961074, 10363759, 20727518]

約数ペア:

[(1, 20727518), (2, 10363759), (7, 2961074), (14, 1480537), (19, 1090922), (29, 714742), (38, 545461), (58, 357371), (133, 155846), (203, 102106), (266, 77923), (406, 51053), (551, 37618), (1102, 18809), (2687, 7714), (3857, 5374)]