21229688

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{7351}}^1$

素因数の和:7395

約数の個数: 24

約数和(自身を含む): 42016680

約数和(自身を除く): 20786992

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 361, 722, 1444, 2888, 7351, 14702, 29404, 58808, 139669, 279338, 558676, 1117352, 2653711, 5307422, 10614844, 21229688]

約数ペア:

[(1, 21229688), (2, 10614844), (4, 5307422), (8, 2653711), (19, 1117352), (38, 558676), (76, 279338), (152, 139669), (361, 58808), (722, 29404), (1444, 14702), (2888, 7351)]