20756223

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{263}}^1$

素因数の和:388

約数の個数: 32

約数和(自身を含む): 32102400

約数和(自身を除く): 11346177

約数列:

[1, 3, 9, 27, 37, 79, 111, 237, 263, 333, 711, 789, 999, 2133, 2367, 2923, 7101, 8769, 9731, 20777, 26307, 29193, 62331, 78921, 87579, 186993, 262737, 560979, 768749, 2306247, 6918741, 20756223]

約数ペア:

[(1, 20756223), (3, 6918741), (9, 2306247), (27, 768749), (37, 560979), (79, 262737), (111, 186993), (237, 87579), (263, 78921), (333, 62331), (711, 29193), (789, 26307), (999, 20777), (2133, 9731), (2367, 8769), (2923, 7101)]