20778853119

素因数分解:

$3^1\times {\mathrm{101}}^1\times {\mathrm{1321}}^1\times {\mathrm{51913}}^1$

素因数の和:53338

約数の個数: 16

約数和(自身を含む): 28001165664

約数和(自身を除く): 7222312545

約数列:

[1, 3, 101, 303, 1321, 3963, 51913, 133421, 155739, 400263, 5243213, 15729639, 68577073, 205731219, 6926284373, 20778853119]

約数ペア:

[(1, 20778853119), (3, 6926284373), (101, 205731219), (303, 68577073), (1321, 15729639), (3963, 5243213), (51913, 400263), (133421, 155739)]