20686904

素因数分解:

$2^3\times 7^1\times {\mathrm{369409}}^1$

素因数の和:369422

約数の個数: 16

約数和(自身を含む): 44329200

約数和(自身を除く): 23642296

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 369409, 738818, 1477636, 2585863, 2955272, 5171726, 10343452, 20686904]

約数ペア:

[(1, 20686904), (2, 10343452), (4, 5171726), (7, 2955272), (8, 2585863), (14, 1477636), (28, 738818), (56, 369409)]