90218947

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{20233}}^1$

素因数の和:20267

約数の個数: 16

約数和(自身を含む): 113310400

約数和(自身を除く): 23091453

約数列:

[1, 7, 13, 49, 91, 343, 637, 4459, 20233, 141631, 263029, 991417, 1841203, 6939919, 12888421, 90218947]

約数ペア:

[(1, 90218947), (7, 12888421), (13, 6939919), (49, 1841203), (91, 991417), (343, 263029), (637, 141631), (4459, 20233)]