20975739

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{6971}}^1$

素因数の和:7050

約数の個数: 16

約数和(自身を含む): 30119040

約数和(自身を除く): 9143301

約数列:

[1, 3, 17, 51, 59, 177, 1003, 3009, 6971, 20913, 118507, 355521, 411289, 1233867, 6991913, 20975739]

約数ペア:

[(1, 20975739), (3, 6991913), (17, 1233867), (51, 411289), (59, 355521), (177, 118507), (1003, 20913), (3009, 6971)]