21847005

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{16741}}^1$

素因数の和:16781

約数の個数: 24

約数和(自身を含む): 39176280

約数和(自身を除く): 17329275

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 16741, 50223, 83705, 150669, 251115, 485489, 753345, 1456467, 2427445, 4369401, 7282335, 21847005]

約数ペア:

[(1, 21847005), (3, 7282335), (5, 4369401), (9, 2427445), (15, 1456467), (29, 753345), (45, 485489), (87, 251115), (145, 150669), (261, 83705), (435, 50223), (1305, 16741)]