21044879905

素因数分解:

$5^1\times 7^3\times {\mathrm{3067}}^1\times {\mathrm{4001}}^1$

素因数の和:7094

約数の個数: 32

約数和(自身を含む): 29467526400

約数和(自身を除く): 8422646495

約数列:

[1, 5, 7, 35, 49, 245, 343, 1715, 3067, 4001, 15335, 20005, 21469, 28007, 107345, 140035, 150283, 196049, 751415, 980245, 1051981, 1372343, 5259905, 6861715, 12271067, 61355335, 85897469, 429487345, 601282283, 3006411415, 4208975981, 21044879905]

約数ペア:

[(1, 21044879905), (5, 4208975981), (7, 3006411415), (35, 601282283), (49, 429487345), (245, 85897469), (343, 61355335), (1715, 12271067), (3067, 6861715), (4001, 5259905), (15335, 1372343), (20005, 1051981), (21469, 980245), (28007, 751415), (107345, 196049), (140035, 150283)]