201561549

素因数分解:

$3^1\times 7^4\times {\mathrm{27983}}^1$

素因数の和:28014

約数の個数: 20

約数和(自身を含む): 313532736

約数和(自身を除く): 111971187

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 2401, 7203, 27983, 83949, 195881, 587643, 1371167, 4113501, 9598169, 28794507, 67187183, 201561549]

約数ペア:

[(1, 201561549), (3, 67187183), (7, 28794507), (21, 9598169), (49, 4113501), (147, 1371167), (343, 587643), (1029, 195881), (2401, 83949), (7203, 27983)]