21539306

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{11953}}^1$

素因数の和:12025

約数の個数: 16

約数和(自身を含む): 34857864

約数和(自身を除く): 13318558

約数列:

[1, 2, 17, 34, 53, 106, 901, 1802, 11953, 23906, 203201, 406402, 633509, 1267018, 10769653, 21539306]

約数ペア:

[(1, 21539306), (2, 10769653), (17, 1267018), (34, 633509), (53, 406402), (106, 203201), (901, 23906), (1802, 11953)]