47387691

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{21317}}^1$

素因数の和:21355

約数の個数: 24

約数和(自身を含む): 77597520

約数和(自身を除く): 30209829

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 21317, 63951, 191853, 277121, 405023, 831363, 1215069, 2494089, 3645207, 5265299, 15795897, 47387691]

約数ペア:

[(1, 47387691), (3, 15795897), (9, 5265299), (13, 3645207), (19, 2494089), (39, 1215069), (57, 831363), (117, 405023), (171, 277121), (247, 191853), (741, 63951), (2223, 21317)]