20651042012

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{1987}}^1\times {\mathrm{136751}}^1$

素因数の和:138761

約数の個数: 24

約数和(自身を含む): 38060816640

約数和(自身を除く): 17409774628

約数列:

[1, 2, 4, 19, 38, 76, 1987, 3974, 7948, 37753, 75506, 136751, 151012, 273502, 547004, 2598269, 5196538, 10393076, 271724237, 543448474, 1086896948, 5162760503, 10325521006, 20651042012]

約数ペア:

[(1, 20651042012), (2, 10325521006), (4, 5162760503), (19, 1086896948), (38, 543448474), (76, 271724237), (1987, 10393076), (3974, 5196538), (7948, 2598269), (37753, 547004), (75506, 273502), (136751, 151012)]