20625354

素因数分解:

$2^1\times 3^5\times {\mathrm{31}}^1\times {\mathrm{37}}^2$

素因数の和:122

約数の個数: 72

約数和(自身を含む): 49166208

約数和(自身を除く): 28540854

約数列:

[1, 2, 3, 6, 9, 18, 27, 31, 37, 54, 62, 74, 81, 93, 111, 162, 186, 222, 243, 279, 333, 486, 558, 666, 837, 999, 1147, 1369, 1674, 1998, 2294, 2511, 2738, 2997, 3441, 4107, 5022, 5994, 6882, 7533, 8214, 8991, 10323, 12321, 15066, 17982, 20646, 24642, 30969, 36963, 42439, 61938, 73926, 84878, 92907, 110889, 127317, 185814, 221778, 254634, 278721, 332667, 381951, 557442, 665334, 763902, 1145853, 2291706, 3437559, 6875118, 10312677, 20625354]

約数ペア:

[(1, 20625354), (2, 10312677), (3, 6875118), (6, 3437559), (9, 2291706), (18, 1145853), (27, 763902), (31, 665334), (37, 557442), (54, 381951), (62, 332667), (74, 278721), (81, 254634), (93, 221778), (111, 185814), (162, 127317), (186, 110889), (222, 92907), (243, 84878), (279, 73926), (333, 61938), (486, 42439), (558, 36963), (666, 30969), (837, 24642), (999, 20646), (1147, 17982), (1369, 15066), (1674, 12321), (1998, 10323), (2294, 8991), (2511, 8214), (2738, 7533), (2997, 6882), (3441, 5994), (4107, 5022)]