19811246

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{547}}^1$

素因数の和:768

約数の個数: 32

約数和(自身を含む): 36825600

約数和(自身を除く): 17014354

約数列:

[1, 2, 7, 13, 14, 26, 91, 182, 199, 398, 547, 1094, 1393, 2587, 2786, 3829, 5174, 7111, 7658, 14222, 18109, 36218, 49777, 99554, 108853, 217706, 761971, 1415089, 1523942, 2830178, 9905623, 19811246]

約数ペア:

[(1, 19811246), (2, 9905623), (7, 2830178), (13, 1523942), (14, 1415089), (26, 761971), (91, 217706), (182, 108853), (199, 99554), (398, 49777), (547, 36218), (1094, 18109), (1393, 14222), (2587, 7658), (2786, 7111), (3829, 5174)]