19809918

素因数分解:

$2^1\times 3^2\times {\mathrm{463}}^1\times {\mathrm{2377}}^1$

素因数の和:2848

約数の個数: 24

約数和(自身を含む): 43032288

約数和(自身を除く): 23222370

約数列:

[1, 2, 3, 6, 9, 18, 463, 926, 1389, 2377, 2778, 4167, 4754, 7131, 8334, 14262, 21393, 42786, 1100551, 2201102, 3301653, 6603306, 9904959, 19809918]

約数ペア:

[(1, 19809918), (2, 9904959), (3, 6603306), (6, 3301653), (9, 2201102), (18, 1100551), (463, 42786), (926, 21393), (1389, 14262), (2377, 8334), (2778, 7131), (4167, 4754)]