21311942

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1\times {\mathrm{1307}}^1$

素因数の和:1603

約数の個数: 16

約数和(自身を含む): 33149952

約数和(自身を除く): 11838010

約数列:

[1, 2, 31, 62, 263, 526, 1307, 2614, 8153, 16306, 40517, 81034, 343741, 687482, 10655971, 21311942]

約数ペア:

[(1, 21311942), (2, 10655971), (31, 687482), (62, 343741), (263, 81034), (526, 40517), (1307, 16306), (2614, 8153)]