20155455

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{26347}}^1$

素因数の和:26375

約数の個数: 24

約数和(自身を含む): 36992592

約数和(自身を除く): 16837137

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 26347, 79041, 131735, 237123, 395205, 447899, 1185615, 1343697, 2239495, 4031091, 6718485, 20155455]

約数ペア:

[(1, 20155455), (3, 6718485), (5, 4031091), (9, 2239495), (15, 1343697), (17, 1185615), (45, 447899), (51, 395205), (85, 237123), (153, 131735), (255, 79041), (765, 26347)]