218780913

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{35731}}^1$

素因数の和:35904

約数の個数: 16

約数和(自身を含む): 316156736

約数和(自身を除く): 97375823

約数列:

[1, 3, 13, 39, 157, 471, 2041, 6123, 35731, 107193, 464503, 1393509, 5609767, 16829301, 72926971, 218780913]

約数ペア:

[(1, 218780913), (3, 72926971), (13, 16829301), (39, 5609767), (157, 1393509), (471, 464503), (2041, 107193), (6123, 35731)]