19966672

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{2767}}^1$

素因数の和:2827

約数の個数: 40

約数和(自身を含む): 43247232

約数和(自身を除く): 23280560

約数列:

[1, 2, 4, 8, 11, 16, 22, 41, 44, 82, 88, 164, 176, 328, 451, 656, 902, 1804, 2767, 3608, 5534, 7216, 11068, 22136, 30437, 44272, 60874, 113447, 121748, 226894, 243496, 453788, 486992, 907576, 1247917, 1815152, 2495834, 4991668, 9983336, 19966672]

約数ペア:

[(1, 19966672), (2, 9983336), (4, 4991668), (8, 2495834), (11, 1815152), (16, 1247917), (22, 907576), (41, 486992), (44, 453788), (82, 243496), (88, 226894), (164, 121748), (176, 113447), (328, 60874), (451, 44272), (656, 30437), (902, 22136), (1804, 11068), (2767, 7216), (3608, 5534)]