21497788156

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{82207}}^1$

素因数の和:82378

約数の個数: 48

約数和(自身を含む): 41764294656

約数和(自身を除く): 20266506500

約数列:

[1, 2, 4, 13, 26, 47, 52, 94, 107, 188, 214, 428, 611, 1222, 1391, 2444, 2782, 5029, 5564, 10058, 20116, 65377, 82207, 130754, 164414, 261508, 328828, 1068691, 2137382, 3863729, 4274764, 7727458, 8796149, 15454916, 17592298, 35184596, 50228477, 100456954, 114349937, 200913908, 228699874, 413419003, 457399748, 826838006, 1653676012, 5374447039, 10748894078, 21497788156]

約数ペア:

[(1, 21497788156), (2, 10748894078), (4, 5374447039), (13, 1653676012), (26, 826838006), (47, 457399748), (52, 413419003), (94, 228699874), (107, 200913908), (188, 114349937), (214, 100456954), (428, 50228477), (611, 35184596), (1222, 17592298), (1391, 15454916), (2444, 8796149), (2782, 7727458), (5029, 4274764), (5564, 3863729), (10058, 2137382), (20116, 1068691), (65377, 328828), (82207, 261508), (130754, 164414)]