15867861

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:217

約数の個数: 32

約数和(自身を含む): 23224320

約数和(自身を除く): 7356459

約数列:

[1, 3, 23, 41, 69, 71, 79, 123, 213, 237, 943, 1633, 1817, 2829, 2911, 3239, 4899, 5451, 5609, 8733, 9717, 16827, 66953, 74497, 129007, 200859, 223491, 229969, 387021, 689907, 5289287, 15867861]

約数ペア:

[(1, 15867861), (3, 5289287), (23, 689907), (41, 387021), (69, 229969), (71, 223491), (79, 200859), (123, 129007), (213, 74497), (237, 66953), (943, 16827), (1633, 9717), (1817, 8733), (2829, 5609), (2911, 5451), (3239, 4899)]