21764060

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{12227}}^1$

素因数の和:12325

約数の個数: 24

約数和(自身を含む): 46221840

約数和(自身を除く): 24457780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 12227, 24454, 48908, 61135, 122270, 244540, 1088203, 2176406, 4352812, 5441015, 10882030, 21764060]

約数ペア:

[(1, 21764060), (2, 10882030), (4, 5441015), (5, 4352812), (10, 2176406), (20, 1088203), (89, 244540), (178, 122270), (356, 61135), (445, 48908), (890, 24454), (1780, 12227)]