18811964

素因数分解:

$2^2\times {\mathrm{421}}^1\times {\mathrm{11171}}^1$

素因数の和:11596

約数の個数: 12

約数和(自身を含む): 33002088

約数和(自身を除く): 14190124

約数列:

[1, 2, 4, 421, 842, 1684, 11171, 22342, 44684, 4702991, 9405982, 18811964]

約数ペア:

[(1, 18811964), (2, 9405982), (4, 4702991), (421, 44684), (842, 22342), (1684, 11171)]