20124387

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{349}}^1$

素因数の和:547

約数の個数: 24

約数和(自身を含む): 30030000

約数和(自身を除く): 9905613

約数列:

[1, 3, 9, 43, 129, 149, 349, 387, 447, 1047, 1341, 3141, 6407, 15007, 19221, 45021, 52001, 57663, 135063, 156003, 468009, 2236043, 6708129, 20124387]

約数ペア:

[(1, 20124387), (3, 6708129), (9, 2236043), (43, 468009), (129, 156003), (149, 135063), (349, 57663), (387, 52001), (447, 45021), (1047, 19221), (1341, 15007), (3141, 6407)]