19494293

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:221

約数の個数: 32

約数和(自身を含む): 25401600

約数和(自身を除く): 5907307

約数列:

[1, 7, 13, 29, 83, 89, 91, 203, 377, 581, 623, 1079, 1157, 2407, 2581, 2639, 7387, 7553, 8099, 16849, 18067, 31291, 33553, 51709, 96031, 214223, 219037, 234871, 672217, 1499561, 2784899, 19494293]

約数ペア:

[(1, 19494293), (7, 2784899), (13, 1499561), (29, 672217), (83, 234871), (89, 219037), (91, 214223), (203, 96031), (377, 51709), (581, 33553), (623, 31291), (1079, 18067), (1157, 16849), (2407, 8099), (2581, 7553), (2639, 7387)]