16820972

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{19379}}^1$

素因数の和:19421

約数の個数: 24

約数和(自身を含む): 34728960

約数和(自身を除く): 17907988

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 19379, 38758, 77516, 135653, 271306, 542612, 600749, 1201498, 2402996, 4205243, 8410486, 16820972]

約数ペア:

[(1, 16820972), (2, 8410486), (4, 4205243), (7, 2402996), (14, 1201498), (28, 600749), (31, 542612), (62, 271306), (124, 135653), (217, 77516), (434, 38758), (868, 19379)]