20996912188

素因数分解:

$2^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{283}}^1\times {\mathrm{12211}}^1$

素因数の和:12543

約数の個数: 72

約数和(自身を含む): 44282079744

約数和(自身を除く): 23285167556

約数列:

[1, 2, 4, 7, 14, 28, 31, 49, 62, 98, 124, 196, 217, 283, 434, 566, 868, 1132, 1519, 1981, 3038, 3962, 6076, 7924, 8773, 12211, 13867, 17546, 24422, 27734, 35092, 48844, 55468, 61411, 85477, 122822, 170954, 245644, 341908, 378541, 429877, 598339, 757082, 859754, 1196678, 1514164, 1719508, 2393356, 2649787, 3455713, 5299574, 6911426, 10599148, 13822852, 18548509, 24189991, 37097018, 48379982, 74194036, 96759964, 107127103, 169329937, 214254206, 338659874, 428508412, 677319748, 749889721, 1499779442, 2999558884, 5249228047, 10498456094, 20996912188]

約数ペア:

[(1, 20996912188), (2, 10498456094), (4, 5249228047), (7, 2999558884), (14, 1499779442), (28, 749889721), (31, 677319748), (49, 428508412), (62, 338659874), (98, 214254206), (124, 169329937), (196, 107127103), (217, 96759964), (283, 74194036), (434, 48379982), (566, 37097018), (868, 24189991), (1132, 18548509), (1519, 13822852), (1981, 10599148), (3038, 6911426), (3962, 5299574), (6076, 3455713), (7924, 2649787), (8773, 2393356), (12211, 1719508), (13867, 1514164), (17546, 1196678), (24422, 859754), (27734, 757082), (35092, 598339), (48844, 429877), (55468, 378541), (61411, 341908), (85477, 245644), (122822, 170954)]