21787444790

素因数分解:

$2^1\times 5^1\times {\mathrm{38609}}^1\times {\mathrm{56431}}^1$

素因数の和:95047

約数の個数: 16

約数和(自身を含む): 39219111360

約数和(自身を除く): 17431666570

約数列:

[1, 2, 5, 10, 38609, 56431, 77218, 112862, 193045, 282155, 386090, 564310, 2178744479, 4357488958, 10893722395, 21787444790]

約数ペア:

[(1, 21787444790), (2, 10893722395), (5, 4357488958), (10, 2178744479), (38609, 564310), (56431, 386090), (77218, 282155), (112862, 193045)]