21000618122

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{449}}^1\times {\mathrm{16229}}^1$

素因数の和:16822

約数の個数: 32

約数和(自身を含む): 34706232000

約数和(自身を除く): 13705613878

約数列:

[1, 2, 11, 22, 131, 262, 449, 898, 1441, 2882, 4939, 9878, 16229, 32458, 58819, 117638, 178519, 357038, 647009, 1294018, 2125999, 4251998, 7286821, 14573642, 23385989, 46771978, 80155031, 160310062, 954573551, 1909147102, 10500309061, 21000618122]

約数ペア:

[(1, 21000618122), (2, 10500309061), (11, 1909147102), (22, 954573551), (131, 160310062), (262, 80155031), (449, 46771978), (898, 23385989), (1441, 14573642), (2882, 7286821), (4939, 4251998), (9878, 2125999), (16229, 1294018), (32458, 647009), (58819, 357038), (117638, 178519)]