31197826

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{19973}}^1$

素因数の和:20057

約数の個数: 16

約数和(自身を含む): 51772608

約数和(自身を除く): 20574782

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 19973, 39946, 219703, 439406, 1418083, 2836166, 15598913, 31197826]

約数ペア:

[(1, 31197826), (2, 15598913), (11, 2836166), (22, 1418083), (71, 439406), (142, 219703), (781, 39946), (1562, 19973)]