18839979

素因数分解:

$3^3\times {\mathrm{211}}^1\times {\mathrm{3307}}^1$

素因数の和:3527

約数の個数: 16

約数和(自身を含む): 28051840

約数和(自身を除く): 9211861

約数列:

[1, 3, 9, 27, 211, 633, 1899, 3307, 5697, 9921, 29763, 89289, 697777, 2093331, 6279993, 18839979]

約数ペア:

[(1, 18839979), (3, 6279993), (9, 2093331), (27, 697777), (211, 89289), (633, 29763), (1899, 9921), (3307, 5697)]