20813914

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{5227}}^1$

素因数の和:5421

約数の個数: 16

約数和(自身を含む): 34253856

約数和(自身を除く): 13439942

約数列:

[1, 2, 11, 22, 181, 362, 1991, 3982, 5227, 10454, 57497, 114994, 946087, 1892174, 10406957, 20813914]

約数ペア:

[(1, 20813914), (2, 10406957), (11, 1892174), (22, 946087), (181, 114994), (362, 57497), (1991, 10454), (3982, 5227)]