21480547965

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{84237443}}^1$

素因数の和:84237468

約数の個数: 16

約数和(自身を含む): 36390575808

約数和(自身を除く): 14910027843

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 84237443, 252712329, 421187215, 1263561645, 1432036531, 4296109593, 7160182655, 21480547965]

約数ペア:

[(1, 21480547965), (3, 7160182655), (5, 4296109593), (15, 1432036531), (17, 1263561645), (51, 421187215), (85, 252712329), (255, 84237443)]