20990306

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{3593}}^1$

素因数の和:3745

約数の個数: 16

約数和(自身を含む): 33122304

約数和(自身を除く): 12131998

約数列:

[1, 2, 23, 46, 127, 254, 2921, 3593, 5842, 7186, 82639, 165278, 456311, 912622, 10495153, 20990306]

約数ペア:

[(1, 20990306), (2, 10495153), (23, 912622), (46, 456311), (127, 165278), (254, 82639), (2921, 7186), (3593, 5842)]