2155261918

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{401}}^1\times {\mathrm{86689}}^1$

素因数の和:87123

約数の個数: 16

約数和(自身を含む): 3345540480

約数和(自身を除く): 1190278562

約数列:

[1, 2, 31, 62, 401, 802, 12431, 24862, 86689, 173378, 2687359, 5374718, 34762289, 69524578, 1077630959, 2155261918]

約数ペア:

[(1, 2155261918), (2, 1077630959), (31, 69524578), (62, 34762289), (401, 5374718), (802, 2687359), (12431, 173378), (24862, 86689)]