21287802635

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{20371103}}^1$

素因数の和:20371138

約数の個数: 16

約数和(自身を含む): 29334389760

約数和(自身を除く): 8046587125

約数列:

[1, 5, 11, 19, 55, 95, 209, 1045, 20371103, 101855515, 224082133, 387050957, 1120410665, 1935254785, 4257560527, 21287802635]

約数ペア:

[(1, 21287802635), (5, 4257560527), (11, 1935254785), (19, 1120410665), (55, 387050957), (95, 224082133), (209, 101855515), (1045, 20371103)]