19853195

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{647}}^1$

素因数の和:707

約数の個数: 24

約数和(自身を含む): 26663904

約数和(自身を除く): 6810709

約数列:

[1, 5, 17, 19, 85, 95, 323, 361, 647, 1615, 1805, 3235, 6137, 10999, 12293, 30685, 54995, 61465, 208981, 233567, 1044905, 1167835, 3970639, 19853195]

約数ペア:

[(1, 19853195), (5, 3970639), (17, 1167835), (19, 1044905), (85, 233567), (95, 208981), (323, 61465), (361, 54995), (647, 30685), (1615, 12293), (1805, 10999), (3235, 6137)]