20147980111

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{20327}}^1$

素因数の和:20503

約数の個数: 32

約数和(自身を含む): 24471659520

約数和(自身を除く): 4323679409

約数列:

[1, 7, 37, 43, 89, 259, 301, 623, 1591, 3293, 3827, 11137, 20327, 23051, 26789, 141599, 142289, 752099, 874061, 991193, 1809103, 5264693, 6118427, 12663721, 32340257, 66936811, 77791429, 226381799, 468557677, 544540003, 2878282873, 20147980111]

約数ペア:

[(1, 20147980111), (7, 2878282873), (37, 544540003), (43, 468557677), (89, 226381799), (259, 77791429), (301, 66936811), (623, 32340257), (1591, 12663721), (3293, 6118427), (3827, 5264693), (11137, 1809103), (20327, 991193), (23051, 874061), (26789, 752099), (141599, 142289)]