20017278

素因数分解:

$2^1\times 3^2\times {\mathrm{409}}^1\times {\mathrm{2719}}^1$

素因数の和:3136

約数の個数: 24

約数和(自身を含む): 43492800

約数和(自身を除く): 23475522

約数列:

[1, 2, 3, 6, 9, 18, 409, 818, 1227, 2454, 2719, 3681, 5438, 7362, 8157, 16314, 24471, 48942, 1112071, 2224142, 3336213, 6672426, 10008639, 20017278]

約数ペア:

[(1, 20017278), (2, 10008639), (3, 6672426), (6, 3336213), (9, 2224142), (18, 1112071), (409, 48942), (818, 24471), (1227, 16314), (2454, 8157), (2719, 7362), (3681, 5438)]