21360400

素因数分解:

$2^4\times 5^2\times {\mathrm{53401}}^1$

素因数の和:53419

約数の個数: 30

約数和(自身を含む): 51319322

約数和(自身を除く): 29958922

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 53401, 106802, 213604, 267005, 427208, 534010, 854416, 1068020, 1335025, 2136040, 2670050, 4272080, 5340100, 10680200, 21360400]

約数ペア:

[(1, 21360400), (2, 10680200), (4, 5340100), (5, 4272080), (8, 2670050), (10, 2136040), (16, 1335025), (20, 1068020), (25, 854416), (40, 534010), (50, 427208), (80, 267005), (100, 213604), (200, 106802), (400, 53401)]