20955762

素因数分解:

$2^1\times 3^2\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1$

素因数の和:327

約数の個数: 48

約数和(自身を含む): 46725120

約数和(自身を除く): 25769358

約数列:

[1, 2, 3, 6, 9, 18, 89, 103, 127, 178, 206, 254, 267, 309, 381, 534, 618, 762, 801, 927, 1143, 1602, 1854, 2286, 9167, 11303, 13081, 18334, 22606, 26162, 27501, 33909, 39243, 55002, 67818, 78486, 82503, 101727, 117729, 165006, 203454, 235458, 1164209, 2328418, 3492627, 6985254, 10477881, 20955762]

約数ペア:

[(1, 20955762), (2, 10477881), (3, 6985254), (6, 3492627), (9, 2328418), (18, 1164209), (89, 235458), (103, 203454), (127, 165006), (178, 117729), (206, 101727), (254, 82503), (267, 78486), (309, 67818), (381, 55002), (534, 39243), (618, 33909), (762, 27501), (801, 26162), (927, 22606), (1143, 18334), (1602, 13081), (1854, 11303), (2286, 9167)]