18691647

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{4397}}^1$

素因数の和:4522

約数の個数: 16

約数和(自身を含む): 27091680

約数和(自身を除く): 8400033

約数列:

[1, 3, 13, 39, 109, 327, 1417, 4251, 4397, 13191, 57161, 171483, 479273, 1437819, 6230549, 18691647]

約数ペア:

[(1, 18691647), (3, 6230549), (13, 1437819), (39, 479273), (109, 171483), (327, 57161), (1417, 13191), (4251, 4397)]