21140996

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{16363}}^1$

素因数の和:16403

約数の個数: 24

約数和(自身を含む): 41237280

約数和(自身を除く): 20096284

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 323, 646, 1292, 16363, 32726, 65452, 278171, 310897, 556342, 621794, 1112684, 1243588, 5285249, 10570498, 21140996]

約数ペア:

[(1, 21140996), (2, 10570498), (4, 5285249), (17, 1243588), (19, 1112684), (34, 621794), (38, 556342), (68, 310897), (76, 278171), (323, 65452), (646, 32726), (1292, 16363)]