78765489

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{21503}}^1$

素因数の和:21557

約数の個数: 24

約数和(自身を含む): 127475712

約数和(自身を除く): 48710223

約数列:

[1, 3, 9, 11, 33, 37, 99, 111, 333, 407, 1221, 3663, 21503, 64509, 193527, 236533, 709599, 795611, 2128797, 2386833, 7160499, 8751721, 26255163, 78765489]

約数ペア:

[(1, 78765489), (3, 26255163), (9, 8751721), (11, 7160499), (33, 2386833), (37, 2128797), (99, 795611), (111, 709599), (333, 236533), (407, 193527), (1221, 64509), (3663, 21503)]