19521243

素因数分解:

$3^4\times 7^1\times {\mathrm{34429}}^1$

素因数の和:34448

約数の個数: 20

約数和(自身を含む): 33328240

約数和(自身を除く): 13806997

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 34429, 103287, 241003, 309861, 723009, 929583, 2169027, 2788749, 6507081, 19521243]

約数ペア:

[(1, 19521243), (3, 6507081), (7, 2788749), (9, 2169027), (21, 929583), (27, 723009), (63, 309861), (81, 241003), (189, 103287), (567, 34429)]