21000306621

素因数分解:

$3^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{5025199}}^1$

素因数の和:5025408

約数の個数: 16

約数和(自身を含む): 32161280000

約数和(自身を除く): 11160973379

約数列:

[1, 3, 7, 21, 199, 597, 1393, 4179, 5025199, 15075597, 35176393, 105529179, 1000014601, 3000043803, 7000102207, 21000306621]

約数ペア:

[(1, 21000306621), (3, 7000102207), (7, 3000043803), (21, 1000014601), (199, 105529179), (597, 35176393), (1393, 15075597), (4179, 5025199)]