21989702

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1453}}^1$

素因数の和:1532

約数の個数: 32

約数和(自身を含む): 40200192

約数和(自身を除く): 18210490

約数列:

[1, 2, 7, 14, 23, 46, 47, 94, 161, 322, 329, 658, 1081, 1453, 2162, 2906, 7567, 10171, 15134, 20342, 33419, 66838, 68291, 136582, 233933, 467866, 478037, 956074, 1570693, 3141386, 10994851, 21989702]

約数ペア:

[(1, 21989702), (2, 10994851), (7, 3141386), (14, 1570693), (23, 956074), (46, 478037), (47, 467866), (94, 233933), (161, 136582), (322, 68291), (329, 66838), (658, 33419), (1081, 20342), (1453, 15134), (2162, 10171), (2906, 7567)]