1621990195

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2439083}}^1$

素因数の和:2439114

約数の個数: 16

約数和(自身を含む): 2341520640

約数和(自身を除く): 719530445

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 2439083, 12195415, 17073581, 46342577, 85367905, 231712885, 324398039, 1621990195]

約数ペア:

[(1, 1621990195), (5, 324398039), (7, 231712885), (19, 85367905), (35, 46342577), (95, 17073581), (133, 12195415), (665, 2439083)]