21261891834

素因数分解:

$2^1\times 3^2\times {\mathrm{821}}^1\times {\mathrm{1438753}}^1$

素因数の和:1439582

約数の個数: 24

約数和(自身を含む): 46123575732

約数和(自身を除く): 24861683898

約数列:

[1, 2, 3, 6, 9, 18, 821, 1642, 2463, 4926, 7389, 14778, 1438753, 2877506, 4316259, 8632518, 12948777, 25897554, 1181216213, 2362432426, 3543648639, 7087297278, 10630945917, 21261891834]

約数ペア:

[(1, 21261891834), (2, 10630945917), (3, 7087297278), (6, 3543648639), (9, 2362432426), (18, 1181216213), (821, 25897554), (1642, 12948777), (2463, 8632518), (4926, 4316259), (7389, 2877506), (14778, 1438753)]