19828313

素因数分解:

${\mathrm{31}}^2\times {\mathrm{47}}^1\times {\mathrm{439}}^1$

素因数の和:548

約数の個数: 12

約数和(自身を含む): 20972160

約数和(自身を除く): 1143847

約数列:

[1, 31, 47, 439, 961, 1457, 13609, 20633, 45167, 421879, 639623, 19828313]

約数ペア:

[(1, 19828313), (31, 639623), (47, 421879), (439, 45167), (961, 20633), (1457, 13609)]