19782295

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{571}}^1$

素因数の和:643

約数の個数: 24

約数和(自身を含む): 26378352

約数和(自身を除く): 6596057

約数列:

[1, 5, 13, 41, 65, 169, 205, 533, 571, 845, 2665, 2855, 6929, 7423, 23411, 34645, 37115, 96499, 117055, 304343, 482495, 1521715, 3956459, 19782295]

約数ペア:

[(1, 19782295), (5, 3956459), (13, 1521715), (41, 482495), (65, 304343), (169, 117055), (205, 96499), (533, 37115), (571, 34645), (845, 23411), (2665, 7423), (2855, 6929)]