18921939

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{4093}}^1$

素因数の和:4186

約数の個数: 16

約数和(自身を含む): 26725632

約数和(自身を除く): 7803693

約数列:

[1, 3, 23, 67, 69, 201, 1541, 4093, 4623, 12279, 94139, 274231, 282417, 822693, 6307313, 18921939]

約数ペア:

[(1, 18921939), (3, 6307313), (23, 822693), (67, 282417), (69, 274231), (201, 94139), (1541, 12279), (4093, 4623)]