21170020

素因数分解:

$2^2\times 5^1\times {\mathrm{227}}^1\times {\mathrm{4663}}^1$

素因数の和:4899

約数の個数: 24

約数和(自身を含む): 44662464

約数和(自身を除く): 23492444

約数列:

[1, 2, 4, 5, 10, 20, 227, 454, 908, 1135, 2270, 4540, 4663, 9326, 18652, 23315, 46630, 93260, 1058501, 2117002, 4234004, 5292505, 10585010, 21170020]

約数ペア:

[(1, 21170020), (2, 10585010), (4, 5292505), (5, 4234004), (10, 2117002), (20, 1058501), (227, 93260), (454, 46630), (908, 23315), (1135, 18652), (2270, 9326), (4540, 4663)]