20181278

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{45659}}^1$

素因数の和:45691

約数の個数: 16

約数和(自身を含む): 34518960

約数和(自身を除く): 14337682

約数列:

[1, 2, 13, 17, 26, 34, 221, 442, 45659, 91318, 593567, 776203, 1187134, 1552406, 10090639, 20181278]

約数ペア:

[(1, 20181278), (2, 10090639), (13, 1552406), (17, 1187134), (26, 776203), (34, 593567), (221, 91318), (442, 45659)]