210681891

素因数分解:

$3^4\times 7^1\times {\mathrm{371573}}^1$

素因数の和:371592

約数の個数: 20

約数和(自身を含む): 359683632

約数和(自身を除く): 149001741

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 371573, 1114719, 2601011, 3344157, 7803033, 10032471, 23409099, 30097413, 70227297, 210681891]

約数ペア:

[(1, 210681891), (3, 70227297), (7, 30097413), (9, 23409099), (21, 10032471), (27, 7803033), (63, 3344157), (81, 2601011), (189, 1114719), (567, 371573)]