20746506

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{173}}^1$

素因数の和:291

約数の個数: 64

約数和(自身を含む): 48107520

約数和(自身を除く): 27361014

約数列:

[1, 2, 3, 6, 11, 22, 23, 33, 46, 66, 69, 79, 138, 158, 173, 237, 253, 346, 474, 506, 519, 759, 869, 1038, 1518, 1738, 1817, 1903, 2607, 3634, 3806, 3979, 5214, 5451, 5709, 7958, 10902, 11418, 11937, 13667, 19987, 23874, 27334, 39974, 41001, 43769, 59961, 82002, 87538, 119922, 131307, 150337, 262614, 300674, 314341, 451011, 628682, 902022, 943023, 1886046, 3457751, 6915502, 10373253, 20746506]

約数ペア:

[(1, 20746506), (2, 10373253), (3, 6915502), (6, 3457751), (11, 1886046), (22, 943023), (23, 902022), (33, 628682), (46, 451011), (66, 314341), (69, 300674), (79, 262614), (138, 150337), (158, 131307), (173, 119922), (237, 87538), (253, 82002), (346, 59961), (474, 43769), (506, 41001), (519, 39974), (759, 27334), (869, 23874), (1038, 19987), (1518, 13667), (1738, 11937), (1817, 11418), (1903, 10902), (2607, 7958), (3634, 5709), (3806, 5451), (3979, 5214)]