21081424190

素因数分解:

$2^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{5557}}^1\times {\mathrm{3911}}^1$

素因数の和:9572

約数の個数: 32

約数和(自身を含む): 38354468544

約数和(自身を除く): 17273044354

約数列:

[1, 2, 5, 10, 97, 194, 485, 970, 3911, 5557, 7822, 11114, 19555, 27785, 39110, 55570, 379367, 539029, 758734, 1078058, 1896835, 2695145, 3793670, 5390290, 21733427, 43466854, 108667135, 217334270, 2108142419, 4216284838, 10540712095, 21081424190]

約数ペア:

[(1, 21081424190), (2, 10540712095), (5, 4216284838), (10, 2108142419), (97, 217334270), (194, 108667135), (485, 43466854), (970, 21733427), (3911, 5390290), (5557, 3793670), (7822, 2695145), (11114, 1896835), (19555, 1078058), (27785, 758734), (39110, 539029), (55570, 379367)]