28898905

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43457}}^1$

素因数の和:43488

約数の個数: 16

約数和(自身を含む): 41719680

約数和(自身を除く): 12820775

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 43457, 217285, 304199, 825683, 1520995, 4128415, 5779781, 28898905]

約数ペア:

[(1, 28898905), (5, 5779781), (7, 4128415), (19, 1520995), (35, 825683), (95, 304199), (133, 217285), (665, 43457)]