18621881

素因数分解:

${\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{991}}^1$

素因数の和:1076

約数の個数: 16

約数和(自身を含む): 20951040

約数和(自身を除く): 2329159

約数列:

[1, 19, 23, 43, 437, 817, 989, 991, 18791, 18829, 22793, 42613, 433067, 809647, 980099, 18621881]

約数ペア:

[(1, 18621881), (19, 980099), (23, 809647), (43, 433067), (437, 42613), (817, 22793), (989, 18829), (991, 18791)]