19157175

素因数分解:

$3^3\times 5^2\times {\mathrm{101}}^1\times {\mathrm{281}}^1$

素因数の和:401

約数の個数: 48

約数和(自身を含む): 35667360

約数和(自身を除く): 16510185

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 101, 135, 225, 281, 303, 505, 675, 843, 909, 1405, 1515, 2525, 2529, 2727, 4215, 4545, 7025, 7575, 7587, 12645, 13635, 21075, 22725, 28381, 37935, 63225, 68175, 85143, 141905, 189675, 255429, 425715, 709525, 766287, 1277145, 2128575, 3831435, 6385725, 19157175]

約数ペア:

[(1, 19157175), (3, 6385725), (5, 3831435), (9, 2128575), (15, 1277145), (25, 766287), (27, 709525), (45, 425715), (75, 255429), (101, 189675), (135, 141905), (225, 85143), (281, 68175), (303, 63225), (505, 37935), (675, 28381), (843, 22725), (909, 21075), (1405, 13635), (1515, 12645), (2525, 7587), (2529, 7575), (2727, 7025), (4215, 4545)]