21591316

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{827}}^1$

素因数の和:999

約数の個数: 24

約数和(自身を含む): 38810016

約数和(自身を除く): 17218700

約数列:

[1, 2, 4, 61, 107, 122, 214, 244, 428, 827, 1654, 3308, 6527, 13054, 26108, 50447, 88489, 100894, 176978, 201788, 353956, 5397829, 10795658, 21591316]

約数ペア:

[(1, 21591316), (2, 10795658), (4, 5397829), (61, 353956), (107, 201788), (122, 176978), (214, 100894), (244, 88489), (428, 50447), (827, 26108), (1654, 13054), (3308, 6527)]