21399070

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{27791}}^1$

素因数の和:27816

約数の個数: 32

約数和(自身を含む): 48024576

約数和(自身を除く): 26625506

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770, 27791, 55582, 138955, 194537, 277910, 305701, 389074, 611402, 972685, 1528505, 1945370, 2139907, 3057010, 4279814, 10699535, 21399070]

約数ペア:

[(1, 21399070), (2, 10699535), (5, 4279814), (7, 3057010), (10, 2139907), (11, 1945370), (14, 1528505), (22, 972685), (35, 611402), (55, 389074), (70, 305701), (77, 277910), (110, 194537), (154, 138955), (385, 55582), (770, 27791)]