21348705

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{203321}}^1$

素因数の和:203336

約数の個数: 16

約数和(自身を含む): 39037824

約数和(自身を除く): 17689119

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 203321, 609963, 1016605, 1423247, 3049815, 4269741, 7116235, 21348705]

約数ペア:

[(1, 21348705), (3, 7116235), (5, 4269741), (7, 3049815), (15, 1423247), (21, 1016605), (35, 609963), (105, 203321)]