20875473

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{2903}}^1$

素因数の和:2973

約数の個数: 24

約数和(自身を含む): 32617728

約数和(自身を除く): 11742255

約数列:

[1, 3, 9, 17, 47, 51, 141, 153, 423, 799, 2397, 2903, 7191, 8709, 26127, 49351, 136441, 148053, 409323, 444159, 1227969, 2319497, 6958491, 20875473]

約数ペア:

[(1, 20875473), (3, 6958491), (9, 2319497), (17, 1227969), (47, 444159), (51, 409323), (141, 148053), (153, 136441), (423, 49351), (799, 26127), (2397, 8709), (2903, 7191)]