20814213

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{18701}}^1$

素因数の和:18764

約数の個数: 16

約数和(自身を含む): 32317056

約数和(自身を除く): 11502843

約数列:

[1, 3, 7, 21, 53, 159, 371, 1113, 18701, 56103, 130907, 392721, 991153, 2973459, 6938071, 20814213]

約数ペア:

[(1, 20814213), (3, 6938071), (7, 2973459), (21, 991153), (53, 392721), (159, 130907), (371, 56103), (1113, 18701)]