18509942

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{20521}}^1$

素因数の和:20575

約数の個数: 16

約数和(自身を含む): 31029264

約数和(自身を除く): 12519322

約数列:

[1, 2, 11, 22, 41, 82, 451, 902, 20521, 41042, 225731, 451462, 841361, 1682722, 9254971, 18509942]

約数ペア:

[(1, 18509942), (2, 9254971), (11, 1682722), (22, 841361), (41, 451462), (82, 225731), (451, 41042), (902, 20521)]