27920715

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{491}}^1$

素因数の和:739

約数の個数: 32

約数和(自身を含む): 47609856

約数和(自身を除く): 19689141

約数列:

[1, 3, 5, 15, 17, 51, 85, 223, 255, 491, 669, 1115, 1473, 2455, 3345, 3791, 7365, 8347, 11373, 18955, 25041, 41735, 56865, 109493, 125205, 328479, 547465, 1642395, 1861381, 5584143, 9306905, 27920715]

約数ペア:

[(1, 27920715), (3, 9306905), (5, 5584143), (15, 1861381), (17, 1642395), (51, 547465), (85, 328479), (223, 125205), (255, 109493), (491, 56865), (669, 41735), (1115, 25041), (1473, 18955), (2455, 11373), (3345, 8347), (3791, 7365)]