21299235

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{38377}}^1$

素因数の和:38422

約数の個数: 16

約数和(自身を含む): 35000736

約数和(自身を除く): 13701501

約数列:

[1, 3, 5, 15, 37, 111, 185, 555, 38377, 115131, 191885, 575655, 1419949, 4259847, 7099745, 21299235]

約数ペア:

[(1, 21299235), (3, 7099745), (5, 4259847), (15, 1419949), (37, 575655), (111, 191885), (185, 115131), (555, 38377)]