21599277

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{227}}^1$

素因数の和:457

約数の個数: 32

約数和(自身を含む): 34670592

約数和(自身を除く): 13071315

約数列:

[1, 3, 7, 21, 23, 69, 161, 197, 227, 483, 591, 681, 1379, 1589, 4137, 4531, 4767, 5221, 13593, 15663, 31717, 36547, 44719, 95151, 109641, 134157, 313033, 939099, 1028537, 3085611, 7199759, 21599277]

約数ペア:

[(1, 21599277), (3, 7199759), (7, 3085611), (21, 1028537), (23, 939099), (69, 313033), (161, 134157), (197, 109641), (227, 95151), (483, 44719), (591, 36547), (681, 31717), (1379, 15663), (1589, 13593), (4137, 5221), (4531, 4767)]