20721226

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{313}}^1\times {\mathrm{419}}^1$

素因数の和:813

約数の個数: 16

約数和(自身を含む): 31651200

約数和(自身を除く): 10929974

約数列:

[1, 2, 79, 158, 313, 419, 626, 838, 24727, 33101, 49454, 66202, 131147, 262294, 10360613, 20721226]

約数ペア:

[(1, 20721226), (2, 10360613), (79, 262294), (158, 131147), (313, 66202), (419, 49454), (626, 33101), (838, 24727)]