19709638

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{127}}^2$

素因数の和:316

約数の個数: 24

約数和(自身を含む): 32774112

約数和(自身を除く): 13064474

約数列:

[1, 2, 13, 26, 47, 94, 127, 254, 611, 1222, 1651, 3302, 5969, 11938, 16129, 32258, 77597, 155194, 209677, 419354, 758063, 1516126, 9854819, 19709638]

約数ペア:

[(1, 19709638), (2, 9854819), (13, 1516126), (26, 758063), (47, 419354), (94, 209677), (127, 155194), (254, 77597), (611, 32258), (1222, 16129), (1651, 11938), (3302, 5969)]