217949499

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{491}}^1$

素因数の和:608

約数の個数: 48

約数和(自身を含む): 342211584

約数和(自身を除く): 124262085

約数列:

[1, 3, 9, 31, 37, 43, 93, 111, 129, 279, 333, 387, 491, 1147, 1333, 1473, 1591, 3441, 3999, 4419, 4773, 10323, 11997, 14319, 15221, 18167, 21113, 45663, 49321, 54501, 63339, 136989, 147963, 163503, 190017, 443889, 563177, 654503, 781181, 1689531, 1963509, 2343543, 5068593, 5890527, 7030629, 24216611, 72649833, 217949499]

約数ペア:

[(1, 217949499), (3, 72649833), (9, 24216611), (31, 7030629), (37, 5890527), (43, 5068593), (93, 2343543), (111, 1963509), (129, 1689531), (279, 781181), (333, 654503), (387, 563177), (491, 443889), (1147, 190017), (1333, 163503), (1473, 147963), (1591, 136989), (3441, 63339), (3999, 54501), (4419, 49321), (4773, 45663), (10323, 21113), (11997, 18167), (14319, 15221)]