90787221

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{30661}}^1$

素因数の和:30721

約数の個数: 24

約数和(自身を含む): 153064704

約数和(自身を除く): 62277483

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 30661, 91983, 214627, 275949, 643881, 1441067, 1931643, 4323201, 10087469, 12969603, 30262407, 90787221]

約数ペア:

[(1, 90787221), (3, 30262407), (7, 12969603), (9, 10087469), (21, 4323201), (47, 1931643), (63, 1441067), (141, 643881), (329, 275949), (423, 214627), (987, 91983), (2961, 30661)]