21747573

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{307}}^1\times {\mathrm{463}}^1$

素因数の和:793

約数の個数: 24

約数和(自身を含む): 33441408

約数和(自身を除く): 11693835

約数列:

[1, 3, 9, 17, 51, 153, 307, 463, 921, 1389, 2763, 4167, 5219, 7871, 15657, 23613, 46971, 70839, 142141, 426423, 1279269, 2416397, 7249191, 21747573]

約数ペア:

[(1, 21747573), (3, 7249191), (9, 2416397), (17, 1279269), (51, 426423), (153, 142141), (307, 70839), (463, 46971), (921, 23613), (1389, 15657), (2763, 7871), (4167, 5219)]