20887047

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{1013}}^1$

素因数の和:1127

約数の個数: 24

約数和(自身を含む): 31636800

約数和(自身を除く): 10749753

約数列:

[1, 3, 9, 29, 79, 87, 237, 261, 711, 1013, 2291, 3039, 6873, 9117, 20619, 29377, 80027, 88131, 240081, 264393, 720243, 2320783, 6962349, 20887047]

約数ペア:

[(1, 20887047), (3, 6962349), (9, 2320783), (29, 720243), (79, 264393), (87, 240081), (237, 88131), (261, 80027), (711, 29377), (1013, 20619), (2291, 9117), (3039, 6873)]