21187642

素因数分解:

$2^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{19157}}^1$

素因数の和:19245

約数の個数: 16

約数和(自身を含む): 36783360

約数和(自身を除く): 15595718

約数列:

[1, 2, 7, 14, 79, 158, 553, 1106, 19157, 38314, 134099, 268198, 1513403, 3026806, 10593821, 21187642]

約数ペア:

[(1, 21187642), (2, 10593821), (7, 3026806), (14, 1513403), (79, 268198), (158, 134099), (553, 38314), (1106, 19157)]