21142701

素因数分解:

$3^5\times {\mathrm{167}}^1\times {\mathrm{521}}^1$

素因数の和:703

約数の個数: 24

約数和(自身を含む): 31921344

約数和(自身を除く): 10778643

約数列:

[1, 3, 9, 27, 81, 167, 243, 501, 521, 1503, 1563, 4509, 4689, 13527, 14067, 40581, 42201, 87007, 126603, 261021, 783063, 2349189, 7047567, 21142701]

約数ペア:

[(1, 21142701), (3, 7047567), (9, 2349189), (27, 783063), (81, 261021), (167, 126603), (243, 87007), (501, 42201), (521, 40581), (1503, 14067), (1563, 13527), (4509, 4689)]