21870018

素因数分解:

$2^1\times 3^2\times {\mathrm{947}}^1\times {\mathrm{1283}}^1$

素因数の和:2238

約数の個数: 24

約数和(自身を含む): 47472048

約数和(自身を除く): 25602030

約数列:

[1, 2, 3, 6, 9, 18, 947, 1283, 1894, 2566, 2841, 3849, 5682, 7698, 8523, 11547, 17046, 23094, 1215001, 2430002, 3645003, 7290006, 10935009, 21870018]

約数ペア:

[(1, 21870018), (2, 10935009), (3, 7290006), (6, 3645003), (9, 2430002), (18, 1215001), (947, 23094), (1283, 17046), (1894, 11547), (2566, 8523), (2841, 7698), (3849, 5682)]