20394747

素因数分解:

$3^5\times {\mathrm{17}}^1\times {\mathrm{4937}}^1$

素因数の和:4969

約数の個数: 24

約数和(自身を含む): 32353776

約数和(自身を除く): 11959029

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 243, 459, 1377, 4131, 4937, 14811, 44433, 83929, 133299, 251787, 399897, 755361, 1199691, 2266083, 6798249, 20394747]

約数ペア:

[(1, 20394747), (3, 6798249), (9, 2266083), (17, 1199691), (27, 755361), (51, 399897), (81, 251787), (153, 133299), (243, 83929), (459, 44433), (1377, 14811), (4131, 4937)]