20712373

素因数分解:

${\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{181}}^1$

素因数の和:396

約数の個数: 16

約数和(自身を含む): 23167872

約数和(自身を除く): 2455499

約数列:

[1, 11, 101, 103, 181, 1111, 1133, 1991, 10403, 18281, 18643, 114433, 201091, 205073, 1882943, 20712373]

約数ペア:

[(1, 20712373), (11, 1882943), (101, 205073), (103, 201091), (181, 114433), (1111, 18643), (1133, 18281), (1991, 10403)]