18679415

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{283}}^1\times {\mathrm{307}}^1$

素因数の和:638

約数の個数: 16

約数和(自身を含む): 23092608

約数和(自身を除く): 4413193

約数列:

[1, 5, 43, 215, 283, 307, 1415, 1535, 12169, 13201, 60845, 66005, 86881, 434405, 3735883, 18679415]

約数ペア:

[(1, 18679415), (5, 3735883), (43, 434405), (215, 86881), (283, 66005), (307, 60845), (1415, 13201), (1535, 12169)]