20738212

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{113}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 41291712

約数和(自身を除く): 20553500

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 97, 113, 172, 194, 226, 388, 452, 473, 946, 1067, 1243, 1892, 2134, 2486, 4171, 4268, 4859, 4972, 8342, 9718, 10961, 16684, 19436, 21922, 43844, 45881, 53449, 91762, 106898, 120571, 183524, 213796, 241142, 471323, 482284, 942646, 1885292, 5184553, 10369106, 20738212]

約数ペア:

[(1, 20738212), (2, 10369106), (4, 5184553), (11, 1885292), (22, 942646), (43, 482284), (44, 471323), (86, 241142), (97, 213796), (113, 183524), (172, 120571), (194, 106898), (226, 91762), (388, 53449), (452, 45881), (473, 43844), (946, 21922), (1067, 19436), (1243, 16684), (1892, 10961), (2134, 9718), (2486, 8342), (4171, 4972), (4268, 4859)]