20393954

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1783}}^1$

素因数の和:1854

約数の個数: 32

約数和(自身を含む): 37678080

約数和(自身を除く): 17284126

約数列:

[1, 2, 7, 14, 19, 38, 43, 86, 133, 266, 301, 602, 817, 1634, 1783, 3566, 5719, 11438, 12481, 24962, 33877, 67754, 76669, 153338, 237139, 474278, 536683, 1073366, 1456711, 2913422, 10196977, 20393954]

約数ペア:

[(1, 20393954), (2, 10196977), (7, 2913422), (14, 1456711), (19, 1073366), (38, 536683), (43, 474278), (86, 237139), (133, 153338), (266, 76669), (301, 67754), (602, 33877), (817, 24962), (1634, 12481), (1783, 11438), (3566, 5719)]