21417788

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{317}}^1$

素因数の和:474

約数の個数: 48

約数和(自身を含む): 45588480

約数和(自身を除く): 24170692

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 127, 133, 254, 266, 317, 508, 532, 634, 889, 1268, 1778, 2219, 2413, 3556, 4438, 4826, 6023, 8876, 9652, 12046, 16891, 24092, 33782, 40259, 42161, 67564, 80518, 84322, 161036, 168644, 281813, 563626, 764921, 1127252, 1529842, 3059684, 5354447, 10708894, 21417788]

約数ペア:

[(1, 21417788), (2, 10708894), (4, 5354447), (7, 3059684), (14, 1529842), (19, 1127252), (28, 764921), (38, 563626), (76, 281813), (127, 168644), (133, 161036), (254, 84322), (266, 80518), (317, 67564), (508, 42161), (532, 40259), (634, 33782), (889, 24092), (1268, 16891), (1778, 12046), (2219, 9652), (2413, 8876), (3556, 6023), (4438, 4826)]