21557268

素因数分解:

$2^2\times 3^2\times {\mathrm{317}}^1\times {\mathrm{1889}}^1$

素因数の和:2216

約数の個数: 36

約数和(自身を含む): 54692820

約数和(自身を除く): 33135552

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 317, 634, 951, 1268, 1889, 1902, 2853, 3778, 3804, 5667, 5706, 7556, 11334, 11412, 17001, 22668, 34002, 68004, 598813, 1197626, 1796439, 2395252, 3592878, 5389317, 7185756, 10778634, 21557268]

約数ペア:

[(1, 21557268), (2, 10778634), (3, 7185756), (4, 5389317), (6, 3592878), (9, 2395252), (12, 1796439), (18, 1197626), (36, 598813), (317, 68004), (634, 34002), (951, 22668), (1268, 17001), (1889, 11412), (1902, 11334), (2853, 7556), (3778, 5706), (3804, 5667)]