19689649

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1\times {\mathrm{229}}^1$

素因数の和:480

約数の個数: 16

約数和(自身を含む): 23051520

約数和(自身を除く): 3361871

約数列:

[1, 7, 71, 173, 229, 497, 1211, 1603, 12283, 16259, 39617, 85981, 113813, 277319, 2812807, 19689649]

約数ペア:

[(1, 19689649), (7, 2812807), (71, 277319), (173, 113813), (229, 85981), (497, 39617), (1211, 16259), (1603, 12283)]