20681262

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{151}}^1\times {\mathrm{1087}}^1$

素因数の和:1253

約数の個数: 48

約数和(自身を含む): 51597312

約数和(自身を除く): 30916050

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 151, 302, 453, 906, 1057, 1087, 1359, 2114, 2174, 2718, 3171, 3261, 6342, 6522, 7609, 9513, 9783, 15218, 19026, 19566, 22827, 45654, 68481, 136962, 164137, 328274, 492411, 984822, 1148959, 1477233, 2297918, 2954466, 3446877, 6893754, 10340631, 20681262]

約数ペア:

[(1, 20681262), (2, 10340631), (3, 6893754), (6, 3446877), (7, 2954466), (9, 2297918), (14, 1477233), (18, 1148959), (21, 984822), (42, 492411), (63, 328274), (126, 164137), (151, 136962), (302, 68481), (453, 45654), (906, 22827), (1057, 19566), (1087, 19026), (1359, 15218), (2114, 9783), (2174, 9513), (2718, 7609), (3171, 6522), (3261, 6342)]