20847346

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{643}}^1$

素因数の和:730

約数の個数: 32

約数和(自身を含む): 35703360

約数和(自身を除く): 14856014

約数列:

[1, 2, 13, 26, 29, 43, 58, 86, 377, 559, 643, 754, 1118, 1247, 1286, 2494, 8359, 16211, 16718, 18647, 27649, 32422, 37294, 55298, 242411, 359437, 484822, 718874, 801821, 1603642, 10423673, 20847346]

約数ペア:

[(1, 20847346), (2, 10423673), (13, 1603642), (26, 801821), (29, 718874), (43, 484822), (58, 359437), (86, 242411), (377, 55298), (559, 37294), (643, 32422), (754, 27649), (1118, 18647), (1247, 16718), (1286, 16211), (2494, 8359)]