21674156

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{20921}}^1$

素因数の和:20969

約数の個数: 24

約数和(自身を含む): 44522016

約数和(自身を除く): 22847860

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 20921, 41842, 83684, 146447, 292894, 585788, 774077, 1548154, 3096308, 5418539, 10837078, 21674156]

約数ペア:

[(1, 21674156), (2, 10837078), (4, 5418539), (7, 3096308), (14, 1548154), (28, 774077), (37, 585788), (74, 292894), (148, 146447), (259, 83684), (518, 41842), (1036, 20921)]