12780229

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{181}}^1$

素因数の和:337

約数の個数: 24

約数和(自身を含む): 16432416

約数和(自身を除く): 3652187

約数列:

[1, 7, 11, 49, 77, 131, 181, 539, 917, 1267, 1441, 1991, 6419, 8869, 10087, 13937, 23711, 70609, 97559, 165977, 260821, 1161839, 1825747, 12780229]

約数ペア:

[(1, 12780229), (7, 1825747), (11, 1161839), (49, 260821), (77, 165977), (131, 97559), (181, 70609), (539, 23711), (917, 13937), (1267, 10087), (1441, 8869), (1991, 6419)]