19643426

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{38821}}^1$

素因数の和:38857

約数の個数: 16

約数和(自身を含む): 33542208

約数和(自身を除く): 13898782

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 38821, 77642, 427031, 854062, 892883, 1785766, 9821713, 19643426]

約数ペア:

[(1, 19643426), (2, 9821713), (11, 1785766), (22, 892883), (23, 854062), (46, 427031), (253, 77642), (506, 38821)]