21272865

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83423}}^1$

素因数の和:83448

約数の個数: 16

約数和(自身を含む): 36039168

約数和(自身を除く): 14766303

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 83423, 250269, 417115, 1251345, 1418191, 4254573, 7090955, 21272865]

約数ペア:

[(1, 21272865), (3, 7090955), (5, 4254573), (15, 1418191), (17, 1251345), (51, 417115), (85, 250269), (255, 83423)]