19700798

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{20479}}^1$

素因数の和:20531

約数の個数: 16

約数和(自身を含む): 32686080

約数和(自身を除く): 12985282

約数列:

[1, 2, 13, 26, 37, 74, 481, 962, 20479, 40958, 266227, 532454, 757723, 1515446, 9850399, 19700798]

約数ペア:

[(1, 19700798), (2, 9850399), (13, 1515446), (26, 757723), (37, 532454), (74, 266227), (481, 40958), (962, 20479)]