18941247

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:232

約数の個数: 48

約数和(自身を含む): 31842720

約数和(自身を除く): 12901473

約数列:

[1, 3, 9, 13, 17, 39, 51, 89, 107, 117, 153, 221, 267, 321, 663, 801, 963, 1157, 1391, 1513, 1819, 1989, 3471, 4173, 4539, 5457, 9523, 10413, 12519, 13617, 16371, 19669, 23647, 28569, 59007, 70941, 85707, 123799, 161891, 177021, 212823, 371397, 485673, 1114191, 1457019, 2104583, 6313749, 18941247]

約数ペア:

[(1, 18941247), (3, 6313749), (9, 2104583), (13, 1457019), (17, 1114191), (39, 485673), (51, 371397), (89, 212823), (107, 177021), (117, 161891), (153, 123799), (221, 85707), (267, 70941), (321, 59007), (663, 28569), (801, 23647), (963, 19669), (1157, 16371), (1391, 13617), (1513, 12519), (1819, 10413), (1989, 9523), (3471, 5457), (4173, 4539)]