20543901

素因数分解:

$3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{7703}}^1$

素因数の和:7840

約数の個数: 16

約数和(自身を含む): 31555584

約数和(自身を除く): 11011683

約数列:

[1, 3, 7, 21, 127, 381, 889, 2667, 7703, 23109, 53921, 161763, 978281, 2934843, 6847967, 20543901]

約数ペア:

[(1, 20543901), (3, 6847967), (7, 2934843), (21, 978281), (127, 161763), (381, 53921), (889, 23109), (2667, 7703)]