18882297

素因数分解:

$3^2\times 7^2\times {\mathrm{47}}^1\times {\mathrm{911}}^1$

素因数の和:978

約数の個数: 36

約数和(自身を含む): 32438016

約数和(自身を除く): 13555719

約数列:

[1, 3, 7, 9, 21, 47, 49, 63, 141, 147, 329, 423, 441, 911, 987, 2303, 2733, 2961, 6377, 6909, 8199, 19131, 20727, 42817, 44639, 57393, 128451, 133917, 299719, 385353, 401751, 899157, 2098033, 2697471, 6294099, 18882297]

約数ペア:

[(1, 18882297), (3, 6294099), (7, 2697471), (9, 2098033), (21, 899157), (47, 401751), (49, 385353), (63, 299719), (141, 133917), (147, 128451), (329, 57393), (423, 44639), (441, 42817), (911, 20727), (987, 19131), (2303, 8199), (2733, 6909), (2961, 6377)]