21786236

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{1657}}^1$

素因数の和:1853

約数の個数: 24

約数和(自身を含む): 40388880

約数和(自身を除く): 18602644

約数列:

[1, 2, 4, 19, 38, 76, 173, 346, 692, 1657, 3287, 3314, 6574, 6628, 13148, 31483, 62966, 125932, 286661, 573322, 1146644, 5446559, 10893118, 21786236]

約数ペア:

[(1, 21786236), (2, 10893118), (4, 5446559), (19, 1146644), (38, 573322), (76, 286661), (173, 125932), (346, 62966), (692, 31483), (1657, 13148), (3287, 6628), (3314, 6574)]