21455658

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1831}}^1$

素因数の和:1880

約数の個数: 64

約数和(自身を含む): 56279040

約数和(自身を除く): 34823382

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 31, 42, 54, 62, 63, 93, 126, 186, 189, 217, 279, 378, 434, 558, 651, 837, 1302, 1674, 1831, 1953, 3662, 3906, 5493, 5859, 10986, 11718, 12817, 16479, 25634, 32958, 38451, 49437, 56761, 76902, 98874, 113522, 115353, 170283, 230706, 340566, 346059, 397327, 510849, 692118, 794654, 1021698, 1191981, 1532547, 2383962, 3065094, 3575943, 7151886, 10727829, 21455658]

約数ペア:

[(1, 21455658), (2, 10727829), (3, 7151886), (6, 3575943), (7, 3065094), (9, 2383962), (14, 1532547), (18, 1191981), (21, 1021698), (27, 794654), (31, 692118), (42, 510849), (54, 397327), (62, 346059), (63, 340566), (93, 230706), (126, 170283), (186, 115353), (189, 113522), (217, 98874), (279, 76902), (378, 56761), (434, 49437), (558, 38451), (651, 32958), (837, 25634), (1302, 16479), (1674, 12817), (1831, 11718), (1953, 10986), (3662, 5859), (3906, 5493)]