19916139908

素因数分解:

$2^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{173}}^1\times {\mathrm{30011}}^1$

素因数の和:30332

約数の個数: 48

約数和(自身を含む): 40356296064

約数和(自身を除く): 20440156156

約数列:

[1, 2, 4, 7, 14, 28, 137, 173, 274, 346, 548, 692, 959, 1211, 1918, 2422, 3836, 4844, 23701, 30011, 47402, 60022, 94804, 120044, 165907, 210077, 331814, 420154, 663628, 840308, 4111507, 5191903, 8223014, 10383806, 16446028, 20767612, 28780549, 36343321, 57561098, 72686642, 115122196, 145373284, 711290711, 1422581422, 2845162844, 4979034977, 9958069954, 19916139908]

約数ペア:

[(1, 19916139908), (2, 9958069954), (4, 4979034977), (7, 2845162844), (14, 1422581422), (28, 711290711), (137, 145373284), (173, 115122196), (274, 72686642), (346, 57561098), (548, 36343321), (692, 28780549), (959, 20767612), (1211, 16446028), (1918, 10383806), (2422, 8223014), (3836, 5191903), (4844, 4111507), (23701, 840308), (30011, 663628), (47402, 420154), (60022, 331814), (94804, 210077), (120044, 165907)]