20669969537

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{307}}^1\times {\mathrm{617}}^1$

素因数の和:1086

約数の個数: 48

約数和(自身を含む): 25778668608

約数和(自身を除く): 5108699071

約数列:

[1, 7, 17, 49, 119, 131, 307, 617, 833, 917, 2149, 2227, 4319, 5219, 6419, 10489, 15043, 15589, 30233, 36533, 40217, 73423, 80827, 109123, 189419, 255731, 281519, 513961, 565789, 683689, 1325933, 1374059, 1970633, 3220123, 3960523, 4785823, 9281531, 9618413, 22540861, 24813889, 33500761, 67328891, 157786027, 173697223, 421836113, 1215880561, 2952852791, 20669969537]

約数ペア:

[(1, 20669969537), (7, 2952852791), (17, 1215880561), (49, 421836113), (119, 173697223), (131, 157786027), (307, 67328891), (617, 33500761), (833, 24813889), (917, 22540861), (2149, 9618413), (2227, 9281531), (4319, 4785823), (5219, 3960523), (6419, 3220123), (10489, 1970633), (15043, 1374059), (15589, 1325933), (30233, 683689), (36533, 565789), (40217, 513961), (73423, 281519), (80827, 255731), (109123, 189419)]