30981286

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{116471}}^1$

素因数の和:116499

約数の個数: 16

約数和(自身を含む): 55906560

約数和(自身を除く): 24925274

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 116471, 232942, 815297, 1630594, 2212949, 4425898, 15490643, 30981286]

約数ペア:

[(1, 30981286), (2, 15490643), (7, 4425898), (14, 2212949), (19, 1630594), (38, 815297), (133, 232942), (266, 116471)]