21069968391

素因数分解:

$3^2\times {\mathrm{1787}}^1\times {\mathrm{1310077}}^1$

素因数の和:1311870

約数の個数: 12

約数和(自身を含む): 30451453032

約数和(自身を除く): 9381484641

約数列:

[1, 3, 9, 1787, 5361, 16083, 1310077, 3930231, 11790693, 2341107599, 7023322797, 21069968391]

約数ペア:

[(1, 21069968391), (3, 7023322797), (9, 2341107599), (1787, 11790693), (5361, 3930231), (16083, 1310077)]