21339645

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{30269}}^1$

素因数の和:30324

約数の個数: 16

約数和(自身を含む): 34871040

約数和(自身を除く): 13531395

約数列:

[1, 3, 5, 15, 47, 141, 235, 705, 30269, 90807, 151345, 454035, 1422643, 4267929, 7113215, 21339645]

約数ペア:

[(1, 21339645), (3, 7113215), (5, 4267929), (15, 1422643), (47, 454035), (141, 151345), (235, 90807), (705, 30269)]