21656992

素因数分解:

$2^5\times 7^1\times {\mathrm{109}}^1\times {\mathrm{887}}^1$

素因数の和:1013

約数の個数: 48

約数和(自身を含む): 49230720

約数和(自身を除く): 27573728

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 109, 112, 218, 224, 436, 763, 872, 887, 1526, 1744, 1774, 3052, 3488, 3548, 6104, 6209, 7096, 12208, 12418, 14192, 24416, 24836, 28384, 49672, 96683, 99344, 193366, 198688, 386732, 676781, 773464, 1353562, 1546928, 2707124, 3093856, 5414248, 10828496, 21656992]

約数ペア:

[(1, 21656992), (2, 10828496), (4, 5414248), (7, 3093856), (8, 2707124), (14, 1546928), (16, 1353562), (28, 773464), (32, 676781), (56, 386732), (109, 198688), (112, 193366), (218, 99344), (224, 96683), (436, 49672), (763, 28384), (872, 24836), (887, 24416), (1526, 14192), (1744, 12418), (1774, 12208), (3052, 7096), (3488, 6209), (3548, 6104)]