18239991

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{281}}^2$

素因数の和:583

約数の個数: 24

約数和(自身を含む): 30429312

約数和(自身を除く): 12189321

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 281, 843, 1967, 3091, 5901, 9273, 21637, 64911, 78961, 236883, 552727, 868571, 1658181, 2605713, 6079997, 18239991]

約数ペア:

[(1, 18239991), (3, 6079997), (7, 2605713), (11, 1658181), (21, 868571), (33, 552727), (77, 236883), (231, 78961), (281, 64911), (843, 21637), (1967, 9273), (3091, 5901)]