21903284

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{1061}}^1$

素因数の和:1475

約数の個数: 24

約数和(自身を含む): 41422248

約数和(自身を除く): 19518964

約数列:

[1, 2, 4, 13, 26, 52, 397, 794, 1061, 1588, 2122, 4244, 5161, 10322, 13793, 20644, 27586, 55172, 421217, 842434, 1684868, 5475821, 10951642, 21903284]

約数ペア:

[(1, 21903284), (2, 10951642), (4, 5475821), (13, 1684868), (26, 842434), (52, 421217), (397, 55172), (794, 27586), (1061, 20644), (1588, 13793), (2122, 10322), (4244, 5161)]