21368230

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{164371}}^1$

素因数の和:164391

約数の個数: 16

約数和(自身を含む): 41421744

約数和(自身を除く): 20053514

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 164371, 328742, 821855, 1643710, 2136823, 4273646, 10684115, 21368230]

約数ペア:

[(1, 21368230), (2, 10684115), (5, 4273646), (10, 2136823), (13, 1643710), (26, 821855), (65, 328742), (130, 164371)]