21714040

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{18719}}^1$

素因数の和:18759

約数の個数: 32

約数和(自身を含む): 50544000

約数和(自身を除く): 28829960

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 18719, 37438, 74876, 93595, 149752, 187190, 374380, 542851, 748760, 1085702, 2171404, 2714255, 4342808, 5428510, 10857020, 21714040]

約数ペア:

[(1, 21714040), (2, 10857020), (4, 5428510), (5, 4342808), (8, 2714255), (10, 2171404), (20, 1085702), (29, 748760), (40, 542851), (58, 374380), (116, 187190), (145, 149752), (232, 93595), (290, 74876), (580, 37438), (1160, 18719)]