20516223

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{337}}^1$

素因数の和:583

約数の個数: 32

約数和(自身を含む): 33918976

約数和(自身を除く): 13402753

約数列:

[1, 3, 7, 13, 21, 39, 91, 223, 273, 337, 669, 1011, 1561, 2359, 2899, 4381, 4683, 7077, 8697, 13143, 20293, 30667, 60879, 75151, 92001, 225453, 526057, 976963, 1578171, 2930889, 6838741, 20516223]

約数ペア:

[(1, 20516223), (3, 6838741), (7, 2930889), (13, 1578171), (21, 976963), (39, 526057), (91, 225453), (223, 92001), (273, 75151), (337, 60879), (669, 30667), (1011, 20293), (1561, 13143), (2359, 8697), (2899, 7077), (4381, 4683)]