31513918

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{7159}}^1$

素因数の和:7263

約数の個数: 16

約数和(自身を含む): 49489920

約数和(自身を除く): 17976002

約数列:

[1, 2, 31, 62, 71, 142, 2201, 4402, 7159, 14318, 221929, 443858, 508289, 1016578, 15756959, 31513918]

約数ペア:

[(1, 31513918), (2, 15756959), (31, 1016578), (62, 508289), (71, 443858), (142, 221929), (2201, 14318), (4402, 7159)]