20538265

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{2473}}^1$

素因数の和:2640

約数の個数: 16

約数和(自身を含む): 27075456

約数和(自身を除く): 6537191

約数列:

[1, 5, 11, 55, 151, 755, 1661, 2473, 8305, 12365, 27203, 136015, 373423, 1867115, 4107653, 20538265]

約数ペア:

[(1, 20538265), (5, 4107653), (11, 1867115), (55, 373423), (151, 136015), (755, 27203), (1661, 12365), (2473, 8305)]