210725991

素因数分解:

$3^2\times 7^1\times {\mathrm{479}}^1\times {\mathrm{6983}}^1$

素因数の和:7475

約数の個数: 24

約数和(自身を含む): 348641280

約数和(自身を除く): 137915289

約数列:

[1, 3, 7, 9, 21, 63, 479, 1437, 3353, 4311, 6983, 10059, 20949, 30177, 48881, 62847, 146643, 439929, 3344857, 10034571, 23413999, 30103713, 70241997, 210725991]

約数ペア:

[(1, 210725991), (3, 70241997), (7, 30103713), (9, 23413999), (21, 10034571), (63, 3344857), (479, 439929), (1437, 146643), (3353, 62847), (4311, 48881), (6983, 30177), (10059, 20949)]