21025316

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{13043}}^1$

素因数の和:13091

約数の個数: 24

約数和(自身を含む): 40905984

約数和(自身を除く): 19880668

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612, 13043, 26086, 52172, 169559, 339118, 404333, 678236, 808666, 1617332, 5256329, 10512658, 21025316]

約数ペア:

[(1, 21025316), (2, 10512658), (4, 5256329), (13, 1617332), (26, 808666), (31, 678236), (52, 404333), (62, 339118), (124, 169559), (403, 52172), (806, 26086), (1612, 13043)]