21610820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{14033}}^1$

素因数の和:14060

約数の個数: 48

約数和(自身を含む): 56585088

約数和(自身を除く): 34974268

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 14033, 28066, 56132, 70165, 98231, 140330, 154363, 196462, 280660, 308726, 392924, 491155, 617452, 771815, 982310, 1080541, 1543630, 1964620, 2161082, 3087260, 4322164, 5402705, 10805410, 21610820]

約数ペア:

[(1, 21610820), (2, 10805410), (4, 5402705), (5, 4322164), (7, 3087260), (10, 2161082), (11, 1964620), (14, 1543630), (20, 1080541), (22, 982310), (28, 771815), (35, 617452), (44, 491155), (55, 392924), (70, 308726), (77, 280660), (110, 196462), (140, 154363), (154, 140330), (220, 98231), (308, 70165), (385, 56132), (770, 28066), (1540, 14033)]