1981226

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{421}}^1$

素因数の和:617

約数の個数: 16

約数和(自身を含む): 3225768

約数和(自身を除く): 1244542

約数列:

[1, 2, 13, 26, 181, 362, 421, 842, 2353, 4706, 5473, 10946, 76201, 152402, 990613, 1981226]

約数ペア:

[(1, 1981226), (2, 990613), (13, 152402), (26, 76201), (181, 10946), (362, 5473), (421, 4706), (842, 2353)]