19986131

素因数分解:

${\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{211}}^1$

素因数の和:410

約数の個数: 16

約数和(自身を含む): 22387200

約数和(自身を除く): 2401069

約数列:

[1, 11, 79, 109, 211, 869, 1199, 2321, 8611, 16669, 22999, 94721, 183359, 252989, 1816921, 19986131]

約数ペア:

[(1, 19986131), (11, 1816921), (79, 252989), (109, 183359), (211, 94721), (869, 22999), (1199, 16669), (2321, 8611)]