19947658

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{191}}^1\times {\mathrm{661}}^1$

素因数の和:933

約数の個数: 16

約数和(自身を含む): 30504960

約数和(自身を除く): 10557302

約数列:

[1, 2, 79, 158, 191, 382, 661, 1322, 15089, 30178, 52219, 104438, 126251, 252502, 9973829, 19947658]

約数ペア:

[(1, 19947658), (2, 9973829), (79, 252502), (158, 126251), (191, 104438), (382, 52219), (661, 30178), (1322, 15089)]