20178843

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{2683}}^1$

素因数の和:2818

約数の個数: 16

約数和(自身を含む): 28343040

約数和(自身を除く): 8164197

約数列:

[1, 3, 23, 69, 109, 327, 2507, 2683, 7521, 8049, 61709, 185127, 292447, 877341, 6726281, 20178843]

約数ペア:

[(1, 20178843), (3, 6726281), (23, 877341), (69, 292447), (109, 185127), (327, 61709), (2507, 8049), (2683, 7521)]