81874917

素因数分解:

$3^2\times {\mathrm{23}}^2\times {\mathrm{29}}^1\times {\mathrm{593}}^1$

素因数の和:674

約数の個数: 36

約数和(自身を含む): 128107980

約数和(自身を除く): 46233063

約数列:

[1, 3, 9, 23, 29, 69, 87, 207, 261, 529, 593, 667, 1587, 1779, 2001, 4761, 5337, 6003, 13639, 15341, 17197, 40917, 46023, 51591, 122751, 138069, 154773, 313697, 395531, 941091, 1186593, 2823273, 3559779, 9097213, 27291639, 81874917]

約数ペア:

[(1, 81874917), (3, 27291639), (9, 9097213), (23, 3559779), (29, 2823273), (69, 1186593), (87, 941091), (207, 395531), (261, 313697), (529, 154773), (593, 138069), (667, 122751), (1587, 51591), (1779, 46023), (2001, 40917), (4761, 17197), (5337, 15341), (6003, 13639)]