21223774

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{74209}}^1$

素因数の和:74235

約数の個数: 16

約数和(自身を含む): 37401840

約数和(自身を除く): 16178066

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 74209, 148418, 816299, 964717, 1632598, 1929434, 10611887, 21223774]

約数ペア:

[(1, 21223774), (2, 10611887), (11, 1929434), (13, 1632598), (22, 964717), (26, 816299), (143, 148418), (286, 74209)]