19528019

素因数分解:

$7^3\times {\mathrm{17}}^2\times {\mathrm{197}}^1$

素因数の和:252

約数の個数: 24

約数和(自身を含む): 24314400

約数和(自身を除く): 4786381

約数列:

[1, 7, 17, 49, 119, 197, 289, 343, 833, 1379, 2023, 3349, 5831, 9653, 14161, 23443, 56933, 67571, 99127, 164101, 398531, 1148707, 2789717, 19528019]

約数ペア:

[(1, 19528019), (7, 2789717), (17, 1148707), (49, 398531), (119, 164101), (197, 99127), (289, 67571), (343, 56933), (833, 23443), (1379, 14161), (2023, 9653), (3349, 5831)]