81399021

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{659}}^1$

素因数の和:889

約数の個数: 32

約数和(自身を含む): 125452800

約数和(自身を除く): 44053779

約数列:

[1, 3, 11, 19, 33, 57, 197, 209, 591, 627, 659, 1977, 2167, 3743, 6501, 7249, 11229, 12521, 21747, 37563, 41173, 123519, 129823, 137731, 389469, 413193, 1428053, 2466637, 4284159, 7399911, 27133007, 81399021]

約数ペア:

[(1, 81399021), (3, 27133007), (11, 7399911), (19, 4284159), (33, 2466637), (57, 1428053), (197, 413193), (209, 389469), (591, 137731), (627, 129823), (659, 123519), (1977, 41173), (2167, 37563), (3743, 21747), (6501, 12521), (7249, 11229)]