278318139

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{53719}}^1$

素因数の和:53890

約数の個数: 16

約数和(自身を含む): 407412480

約数和(自身を除く): 129094341

約数列:

[1, 3, 11, 33, 157, 471, 1727, 5181, 53719, 161157, 590909, 1772727, 8433883, 25301649, 92772713, 278318139]

約数ペア:

[(1, 278318139), (3, 92772713), (11, 25301649), (33, 8433883), (157, 1772727), (471, 590909), (1727, 161157), (5181, 53719)]