20291081

素因数分解:

${\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{277}}^1$

素因数の和:464

約数の個数: 16

約数和(自身を含む): 22417920

約数和(自身を除く): 2126839

約数列:

[1, 17, 31, 139, 277, 527, 2363, 4309, 4709, 8587, 38503, 73253, 145979, 654551, 1193593, 20291081]

約数ペア:

[(1, 20291081), (17, 1193593), (31, 654551), (139, 145979), (277, 73253), (527, 38503), (2363, 8587), (4309, 4709)]