17991918

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{20399}}^1$

素因数の和:20421

約数の個数: 36

約数和(自身を含む): 45349200

約数和(自身を除く): 27357282

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 98, 126, 147, 294, 441, 882, 20399, 40798, 61197, 122394, 142793, 183591, 285586, 367182, 428379, 856758, 999551, 1285137, 1999102, 2570274, 2998653, 5997306, 8995959, 17991918]

約数ペア:

[(1, 17991918), (2, 8995959), (3, 5997306), (6, 2998653), (7, 2570274), (9, 1999102), (14, 1285137), (18, 999551), (21, 856758), (42, 428379), (49, 367182), (63, 285586), (98, 183591), (126, 142793), (147, 122394), (294, 61197), (441, 40798), (882, 20399)]