20120443

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{193}}^1\times {\mathrm{281}}^1$

素因数の和:534

約数の個数: 16

約数和(自身を含む): 23633856

約数和(自身を除く): 3513413

約数列:

[1, 7, 53, 193, 281, 371, 1351, 1967, 10229, 14893, 54233, 71603, 104251, 379631, 2874349, 20120443]

約数ペア:

[(1, 20120443), (7, 2874349), (53, 379631), (193, 104251), (281, 71603), (371, 54233), (1351, 14893), (1967, 10229)]