18187497

素因数分解:

$3^4\times {\mathrm{151}}^1\times {\mathrm{1487}}^1$

素因数の和:1650

約数の個数: 20

約数和(自身を含む): 27367296

約数和(自身を除く): 9179799

約数列:

[1, 3, 9, 27, 81, 151, 453, 1359, 1487, 4077, 4461, 12231, 13383, 40149, 120447, 224537, 673611, 2020833, 6062499, 18187497]

約数ペア:

[(1, 18187497), (3, 6062499), (9, 2020833), (27, 673611), (81, 224537), (151, 120447), (453, 40149), (1359, 13383), (1487, 12231), (4077, 4461)]