20654894

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{167}}^1$

素因数の和:320

約数の個数: 32

約数和(自身を含む): 34546176

約数和(自身を除く): 13891282

約数列:

[1, 2, 13, 26, 67, 71, 134, 142, 167, 334, 871, 923, 1742, 1846, 2171, 4342, 4757, 9514, 11189, 11857, 22378, 23714, 61841, 123682, 145457, 154141, 290914, 308282, 794419, 1588838, 10327447, 20654894]

約数ペア:

[(1, 20654894), (2, 10327447), (13, 1588838), (26, 794419), (67, 308282), (71, 290914), (134, 154141), (142, 145457), (167, 123682), (334, 61841), (871, 23714), (923, 22378), (1742, 11857), (1846, 11189), (2171, 9514), (4342, 4757)]