28121535

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{907}}^1$

素因数の和:984

約数の個数: 48

約数和(自身を含む): 53542944

約数和(自身を除く): 25421409

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 53, 65, 117, 159, 195, 265, 477, 585, 689, 795, 907, 2067, 2385, 2721, 3445, 4535, 6201, 8163, 10335, 11791, 13605, 31005, 35373, 40815, 48071, 58955, 106119, 144213, 176865, 240355, 432639, 530595, 624923, 721065, 1874769, 2163195, 3124615, 5624307, 9373845, 28121535]

約数ペア:

[(1, 28121535), (3, 9373845), (5, 5624307), (9, 3124615), (13, 2163195), (15, 1874769), (39, 721065), (45, 624923), (53, 530595), (65, 432639), (117, 240355), (159, 176865), (195, 144213), (265, 106119), (477, 58955), (585, 48071), (689, 40815), (795, 35373), (907, 31005), (2067, 13605), (2385, 11791), (2721, 10335), (3445, 8163), (4535, 6201)]