21205004050

素因数分解:

$2^1\times 5^2\times {\mathrm{424100081}}^1$

素因数の和:424100093

約数の個数: 12

約数和(自身を含む): 39441307626

約数和(自身を除く): 18236303576

約数列:

[1, 2, 5, 10, 25, 50, 424100081, 848200162, 2120500405, 4241000810, 10602502025, 21205004050]

約数ペア:

[(1, 21205004050), (2, 10602502025), (5, 4241000810), (10, 2120500405), (25, 848200162), (50, 424100081)]