20880918

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1627}}^1$

素因数の和:1689

約数の個数: 48

約数和(自身を含む): 48761856

約数和(自身を除く): 27880938

約数列:

[1, 2, 3, 6, 9, 18, 23, 31, 46, 62, 69, 93, 138, 186, 207, 279, 414, 558, 713, 1426, 1627, 2139, 3254, 4278, 4881, 6417, 9762, 12834, 14643, 29286, 37421, 50437, 74842, 100874, 112263, 151311, 224526, 302622, 336789, 453933, 673578, 907866, 1160051, 2320102, 3480153, 6960306, 10440459, 20880918]

約数ペア:

[(1, 20880918), (2, 10440459), (3, 6960306), (6, 3480153), (9, 2320102), (18, 1160051), (23, 907866), (31, 673578), (46, 453933), (62, 336789), (69, 302622), (93, 224526), (138, 151311), (186, 112263), (207, 100874), (279, 74842), (414, 50437), (558, 37421), (713, 29286), (1426, 14643), (1627, 12834), (2139, 9762), (3254, 6417), (4278, 4881)]