15840279

素因数分解:

$3^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{307}}^1$

素因数の和:346

約数の個数: 60

約数和(自身を含む): 29739864

約数和(自身を除く): 13899585

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 49, 63, 81, 91, 117, 147, 189, 273, 307, 351, 441, 567, 637, 819, 921, 1053, 1323, 1911, 2149, 2457, 2763, 3969, 3991, 5733, 6447, 7371, 8289, 11973, 15043, 17199, 19341, 24867, 27937, 35919, 45129, 51597, 58023, 83811, 107757, 135387, 174069, 195559, 251433, 323271, 406161, 586677, 754299, 1218483, 1760031, 2262897, 5280093, 15840279]

約数ペア:

[(1, 15840279), (3, 5280093), (7, 2262897), (9, 1760031), (13, 1218483), (21, 754299), (27, 586677), (39, 406161), (49, 323271), (63, 251433), (81, 195559), (91, 174069), (117, 135387), (147, 107757), (189, 83811), (273, 58023), (307, 51597), (351, 45129), (441, 35919), (567, 27937), (637, 24867), (819, 19341), (921, 17199), (1053, 15043), (1323, 11973), (1911, 8289), (2149, 7371), (2457, 6447), (2763, 5733), (3969, 3991)]