21456694

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{1289}}^1$

素因数の和:1368

約数の個数: 32

約数和(自身を含む): 39009600

約数和(自身を除く): 17552906

約数列:

[1, 2, 7, 14, 29, 41, 58, 82, 203, 287, 406, 574, 1189, 1289, 2378, 2578, 8323, 9023, 16646, 18046, 37381, 52849, 74762, 105698, 261667, 369943, 523334, 739886, 1532621, 3065242, 10728347, 21456694]

約数ペア:

[(1, 21456694), (2, 10728347), (7, 3065242), (14, 1532621), (29, 739886), (41, 523334), (58, 369943), (82, 261667), (203, 105698), (287, 74762), (406, 52849), (574, 37381), (1189, 18046), (1289, 16646), (2378, 9023), (2578, 8323)]