19991036

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{3527}}^1$

素因数の和:3653

約数の個数: 24

約数和(自身を含む): 38031840

約数和(自身を除く): 18040804

約数列:

[1, 2, 4, 13, 26, 52, 109, 218, 436, 1417, 2834, 3527, 5668, 7054, 14108, 45851, 91702, 183404, 384443, 768886, 1537772, 4997759, 9995518, 19991036]

約数ペア:

[(1, 19991036), (2, 9995518), (4, 4997759), (13, 1537772), (26, 768886), (52, 384443), (109, 183404), (218, 91702), (436, 45851), (1417, 14108), (2834, 7054), (3527, 5668)]