12780387

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{2129}}^1$

素因数の和:2187

約数の個数: 24

約数和(自身を含む): 19936800

約数和(自身を除く): 7156413

約数列:

[1, 3, 9, 23, 29, 69, 87, 207, 261, 667, 2001, 2129, 6003, 6387, 19161, 48967, 61741, 146901, 185223, 440703, 555669, 1420043, 4260129, 12780387]

約数ペア:

[(1, 12780387), (3, 4260129), (9, 1420043), (23, 555669), (29, 440703), (69, 185223), (87, 146901), (207, 61741), (261, 48967), (667, 19161), (2001, 6387), (2129, 6003)]