21294765

素因数分解:

$3^3\times 5^1\times {\mathrm{157739}}^1$

素因数の和:157753

約数の個数: 16

約数和(自身を含む): 37857600

約数和(自身を除く): 16562835

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 157739, 473217, 788695, 1419651, 2366085, 4258953, 7098255, 21294765]

約数ペア:

[(1, 21294765), (3, 7098255), (5, 4258953), (9, 2366085), (15, 1419651), (27, 788695), (45, 473217), (135, 157739)]