20806803

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{499}}^1$

素因数の和:659

約数の個数: 24

約数和(自身を含む): 31122000

約数和(自身を除く): 10315197

約数列:

[1, 3, 9, 41, 113, 123, 339, 369, 499, 1017, 1497, 4491, 4633, 13899, 20459, 41697, 56387, 61377, 169161, 184131, 507483, 2311867, 6935601, 20806803]

約数ペア:

[(1, 20806803), (3, 6935601), (9, 2311867), (41, 507483), (113, 184131), (123, 169161), (339, 61377), (369, 56387), (499, 41697), (1017, 20459), (1497, 13899), (4491, 4633)]