15720327

素因数分解:

$3^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{829}}^1$

素因数の和:892

約数の個数: 36

約数和(自身を含む): 27061320

約数和(自身を除く): 11340993

約数列:

[1, 3, 7, 9, 21, 43, 49, 63, 129, 147, 301, 387, 441, 829, 903, 2107, 2487, 2709, 5803, 6321, 7461, 17409, 18963, 35647, 40621, 52227, 106941, 121863, 249529, 320823, 365589, 748587, 1746703, 2245761, 5240109, 15720327]

約数ペア:

[(1, 15720327), (3, 5240109), (7, 2245761), (9, 1746703), (21, 748587), (43, 365589), (49, 320823), (63, 249529), (129, 121863), (147, 106941), (301, 52227), (387, 40621), (441, 35647), (829, 18963), (903, 17409), (2107, 7461), (2487, 6321), (2709, 5803)]