15721915131

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{2069}}^1\times {\mathrm{21649}}^1$

素因数の和:23740

約数の個数: 32

約数和(自身を含む): 25096680000

約数和(自身を除く): 9374764869

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 2069, 6207, 18621, 21649, 26897, 55863, 64947, 80691, 194841, 242073, 281437, 584523, 726219, 844311, 2532933, 7598799, 44791781, 134375343, 403126029, 582293153, 1209378087, 1746879459, 5240638377, 15721915131]

約数ペア:

[(1, 15721915131), (3, 5240638377), (9, 1746879459), (13, 1209378087), (27, 582293153), (39, 403126029), (117, 134375343), (351, 44791781), (2069, 7598799), (6207, 2532933), (18621, 844311), (21649, 726219), (26897, 584523), (55863, 281437), (64947, 242073), (80691, 194841)]