21931491

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{10399}}^1$

素因数の和:10458

約数の個数: 16

約数和(自身を含む): 31616000

約数和(自身を除く): 9684509

約数列:

[1, 3, 19, 37, 57, 111, 703, 2109, 10399, 31197, 197581, 384763, 592743, 1154289, 7310497, 21931491]

約数ペア:

[(1, 21931491), (3, 7310497), (19, 1154289), (37, 592743), (57, 384763), (111, 197581), (703, 31197), (2109, 10399)]