21931118

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{239}}^1$

素因数の和:392

約数の個数: 32

約数和(自身を含む): 37255680

約数和(自身を除く): 15324562

約数列:

[1, 2, 11, 22, 43, 86, 97, 194, 239, 473, 478, 946, 1067, 2134, 2629, 4171, 5258, 8342, 10277, 20554, 23183, 45881, 46366, 91762, 113047, 226094, 255013, 510026, 996869, 1993738, 10965559, 21931118]

約数ペア:

[(1, 21931118), (2, 10965559), (11, 1993738), (22, 996869), (43, 510026), (86, 255013), (97, 226094), (194, 113047), (239, 91762), (473, 46366), (478, 45881), (946, 23183), (1067, 20554), (2134, 10277), (2629, 8342), (4171, 5258)]