20860839

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{563}}^1$

素因数の和:771

約数の個数: 24

約数和(自身を含む): 31674240

約数和(自身を除く): 10813401

約数列:

[1, 3, 9, 23, 69, 179, 207, 537, 563, 1611, 1689, 4117, 5067, 12351, 12949, 37053, 38847, 100777, 116541, 302331, 906993, 2317871, 6953613, 20860839]

約数ペア:

[(1, 20860839), (3, 6953613), (9, 2317871), (23, 906993), (69, 302331), (179, 116541), (207, 100777), (537, 38847), (563, 37053), (1611, 12949), (1689, 12351), (4117, 5067)]