19690826

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{257}}^1\times {\mathrm{1321}}^1$

素因数の和:1609

約数の個数: 16

約数和(自身を含む): 30696840

約数和(自身を除く): 11006014

約数列:

[1, 2, 29, 58, 257, 514, 1321, 2642, 7453, 14906, 38309, 76618, 339497, 678994, 9845413, 19690826]

約数ペア:

[(1, 19690826), (2, 9845413), (29, 678994), (58, 339497), (257, 76618), (514, 38309), (1321, 14906), (2642, 7453)]