1489492991

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{103}}^2\times {\mathrm{647}}^1$

素因数の和:891

約数の個数: 24

約数和(自身を含む): 1777158144

約数和(自身を除く): 287665153

約数列:

[1, 7, 31, 103, 217, 647, 721, 3193, 4529, 10609, 20057, 22351, 66641, 74263, 140399, 328879, 466487, 2065871, 2302153, 6864023, 14461097, 48048161, 212784713, 1489492991]

約数ペア:

[(1, 1489492991), (7, 212784713), (31, 48048161), (103, 14461097), (217, 6864023), (647, 2302153), (721, 2065871), (3193, 466487), (4529, 328879), (10609, 140399), (20057, 74263), (22351, 66641)]