20691429

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^2\times {\mathrm{373}}^1$

素因数の和:469

約数の個数: 24

約数和(自身を含む): 30931296

約数和(自身を除く): 10239867

約数列:

[1, 3, 11, 33, 41, 123, 373, 451, 1119, 1353, 1681, 4103, 5043, 12309, 15293, 18491, 45879, 55473, 168223, 504669, 627013, 1881039, 6897143, 20691429]

約数ペア:

[(1, 20691429), (3, 6897143), (11, 1881039), (33, 627013), (41, 504669), (123, 168223), (373, 55473), (451, 45879), (1119, 18491), (1353, 15293), (1681, 12309), (4103, 5043)]