21576170

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{4003}}^1$

素因数の和:4035

約数の個数: 48

約数和(自身を含む): 49297248

約数和(自身を除く): 27721078

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 49, 55, 70, 77, 98, 110, 154, 245, 385, 490, 539, 770, 1078, 2695, 4003, 5390, 8006, 20015, 28021, 40030, 44033, 56042, 88066, 140105, 196147, 220165, 280210, 308231, 392294, 440330, 616462, 980735, 1541155, 1961470, 2157617, 3082310, 4315234, 10788085, 21576170]

約数ペア:

[(1, 21576170), (2, 10788085), (5, 4315234), (7, 3082310), (10, 2157617), (11, 1961470), (14, 1541155), (22, 980735), (35, 616462), (49, 440330), (55, 392294), (70, 308231), (77, 280210), (98, 220165), (110, 196147), (154, 140105), (245, 88066), (385, 56042), (490, 44033), (539, 40030), (770, 28021), (1078, 20015), (2695, 8006), (4003, 5390)]