12945987

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{6949}}^1$

素因数の和:6984

約数の個数: 20

約数和(自身を含む): 20182800

約数和(自身を除く): 7236813

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 6949, 20847, 62541, 159827, 187623, 479481, 562869, 1438443, 4315329, 12945987]

約数ペア:

[(1, 12945987), (3, 4315329), (9, 1438443), (23, 562869), (27, 479481), (69, 187623), (81, 159827), (207, 62541), (621, 20847), (1863, 6949)]