12885978

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{306809}}^1$

素因数の和:306821

約数の個数: 16

約数和(自身を含む): 29453760

約数和(自身を除く): 16567782

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 306809, 613618, 920427, 1840854, 2147663, 4295326, 6442989, 12885978]

約数ペア:

[(1, 12885978), (2, 6442989), (3, 4295326), (6, 2147663), (7, 1840854), (14, 920427), (21, 613618), (42, 306809)]