19420918

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{631}}^1\times {\mathrm{1399}}^1$

素因数の和:2043

約数の個数: 16

約数和(自身を含む): 31852800

約数和(自身を除く): 12431882

約数列:

[1, 2, 11, 22, 631, 1262, 1399, 2798, 6941, 13882, 15389, 30778, 882769, 1765538, 9710459, 19420918]

約数ペア:

[(1, 19420918), (2, 9710459), (11, 1765538), (22, 882769), (631, 30778), (1262, 15389), (1399, 13882), (2798, 6941)]