21080042

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{5119}}^1$

素因数の和:5221

約数の個数: 16

約数和(自身を含む): 33177600

約数和(自身を除く): 12097558

約数列:

[1, 2, 29, 58, 71, 142, 2059, 4118, 5119, 10238, 148451, 296902, 363449, 726898, 10540021, 21080042]

約数ペア:

[(1, 21080042), (2, 10540021), (29, 726898), (58, 363449), (71, 296902), (142, 148451), (2059, 10238), (4118, 5119)]