21034280

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{18133}}^1$

素因数の和:18173

約数の個数: 32

約数和(自身を含む): 48961800

約数和(自身を除く): 27927520

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 18133, 36266, 72532, 90665, 145064, 181330, 362660, 525857, 725320, 1051714, 2103428, 2629285, 4206856, 5258570, 10517140, 21034280]

約数ペア:

[(1, 21034280), (2, 10517140), (4, 5258570), (5, 4206856), (8, 2629285), (10, 2103428), (20, 1051714), (29, 725320), (40, 525857), (58, 362660), (116, 181330), (145, 145064), (232, 90665), (290, 72532), (580, 36266), (1160, 18133)]