18979149

素因数分解:

$3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{6899}}^1$

素因数の和:7040

約数の個数: 16

約数和(自身を含む): 29145600

約数和(自身を除く): 10166451

約数列:

[1, 3, 7, 21, 131, 393, 917, 2751, 6899, 20697, 48293, 144879, 903769, 2711307, 6326383, 18979149]

約数ペア:

[(1, 18979149), (3, 6326383), (7, 2711307), (21, 903769), (131, 144879), (393, 48293), (917, 20697), (2751, 6899)]