20717221574

素因数分解:

$2^1\times 7^1\times {\mathrm{4421}}^1\times {\mathrm{334721}}^1$

素因数の和:339151

約数の個数: 16

約数和(自身を含む): 35523376416

約数和(自身を除く): 14806154842

約数列:

[1, 2, 7, 14, 4421, 8842, 30947, 61894, 334721, 669442, 2343047, 4686094, 1479801541, 2959603082, 10358610787, 20717221574]

約数ペア:

[(1, 20717221574), (2, 10358610787), (7, 2959603082), (14, 1479801541), (4421, 4686094), (8842, 2343047), (30947, 669442), (61894, 334721)]