18705999

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{1637}}^1$

素因数の和:1946

約数の個数: 16

約数和(自身を含む): 26968032

約数和(自身を除く): 8262033

約数列:

[1, 3, 13, 39, 293, 879, 1637, 3809, 4911, 11427, 21281, 63843, 479641, 1438923, 6235333, 18705999]

約数ペア:

[(1, 18705999), (3, 6235333), (13, 1438923), (39, 479641), (293, 63843), (879, 21281), (1637, 11427), (3809, 4911)]