19668285

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1601}}^1$

素因数の和:1635

約数の個数: 64

約数和(自身を含む): 43061760

約数和(自身を除く): 23393475

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 27, 35, 39, 45, 63, 65, 91, 105, 117, 135, 189, 195, 273, 315, 351, 455, 585, 819, 945, 1365, 1601, 1755, 2457, 4095, 4803, 8005, 11207, 12285, 14409, 20813, 24015, 33621, 43227, 56035, 62439, 72045, 100863, 104065, 145691, 168105, 187317, 216135, 302589, 312195, 437073, 504315, 561951, 728455, 936585, 1311219, 1512945, 2185365, 2809755, 3933657, 6556095, 19668285]

約数ペア:

[(1, 19668285), (3, 6556095), (5, 3933657), (7, 2809755), (9, 2185365), (13, 1512945), (15, 1311219), (21, 936585), (27, 728455), (35, 561951), (39, 504315), (45, 437073), (63, 312195), (65, 302589), (91, 216135), (105, 187317), (117, 168105), (135, 145691), (189, 104065), (195, 100863), (273, 72045), (315, 62439), (351, 56035), (455, 43227), (585, 33621), (819, 24015), (945, 20813), (1365, 14409), (1601, 12285), (1755, 11207), (2457, 8005), (4095, 4803)]