21788860

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37567}}^1$

素因数の和:37605

約数の個数: 24

約数和(自身を含む): 47335680

約数和(自身を除く): 25546820

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 37567, 75134, 150268, 187835, 375670, 751340, 1089443, 2178886, 4357772, 5447215, 10894430, 21788860]

約数ペア:

[(1, 21788860), (2, 10894430), (4, 5447215), (5, 4357772), (10, 2178886), (20, 1089443), (29, 751340), (58, 375670), (116, 187835), (145, 150268), (290, 75134), (580, 37567)]