18785091

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{251}}^1$

素因数の和:387

約数の個数: 32

約数和(自身を含む): 28788480

約数和(自身を除く): 10003389

約数列:

[1, 3, 13, 19, 39, 57, 101, 247, 251, 303, 741, 753, 1313, 1919, 3263, 3939, 4769, 5757, 9789, 14307, 24947, 25351, 61997, 74841, 76053, 185991, 329563, 481669, 988689, 1445007, 6261697, 18785091]

約数ペア:

[(1, 18785091), (3, 6261697), (13, 1445007), (19, 988689), (39, 481669), (57, 329563), (101, 185991), (247, 76053), (251, 74841), (303, 61997), (741, 25351), (753, 24947), (1313, 14307), (1919, 9789), (3263, 5757), (3939, 4769)]