28004295

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1907}}^1$

素因数の和:2015

約数の個数: 32

約数和(自身を含む): 49455360

約数和(自身を除く): 21451065

約数列:

[1, 3, 5, 11, 15, 33, 55, 89, 165, 267, 445, 979, 1335, 1907, 2937, 4895, 5721, 9535, 14685, 20977, 28605, 62931, 104885, 169723, 314655, 509169, 848615, 1866953, 2545845, 5600859, 9334765, 28004295]

約数ペア:

[(1, 28004295), (3, 9334765), (5, 5600859), (11, 2545845), (15, 1866953), (33, 848615), (55, 509169), (89, 314655), (165, 169723), (267, 104885), (445, 62931), (979, 28605), (1335, 20977), (1907, 14685), (2937, 9535), (4895, 5721)]