21807687

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{34781}}^1$

素因数の和:34814

約数の個数: 16

約数和(自身を含む): 33390720

約数和(自身を除く): 11583033

約数列:

[1, 3, 11, 19, 33, 57, 209, 627, 34781, 104343, 382591, 660839, 1147773, 1982517, 7269229, 21807687]

約数ペア:

[(1, 21807687), (3, 7269229), (11, 1982517), (19, 1147773), (33, 660839), (57, 382591), (209, 104343), (627, 34781)]