20749005

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{10723}}^1$

素因数の和:10777

約数の個数: 24

約数和(自身を含む): 36804768

約数和(自身を除く): 16055763

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 10723, 32169, 53615, 96507, 160845, 461089, 482535, 1383267, 2305445, 4149801, 6916335, 20749005]

約数ペア:

[(1, 20749005), (3, 6916335), (5, 4149801), (9, 2305445), (15, 1383267), (43, 482535), (45, 461089), (129, 160845), (215, 96507), (387, 53615), (645, 32169), (1935, 10723)]