20199451783

素因数分解:

$7^1\times {\mathrm{139}}^1\times {\mathrm{491}}^1\times {\mathrm{42281}}^1$

素因数の和:42918

約数の個数: 16

約数和(自身を含む): 23299073280

約数和(自身を除く): 3099621497

約数列:

[1, 7, 139, 491, 973, 3437, 42281, 68249, 295967, 477743, 5877059, 20759971, 41139413, 145319797, 2885635969, 20199451783]

約数ペア:

[(1, 20199451783), (7, 2885635969), (139, 145319797), (491, 41139413), (973, 20759971), (3437, 5877059), (42281, 477743), (68249, 295967)]