20905278303

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{181891}}^1$

素因数の和:182335

約数の個数: 32

約数和(自身を含む): 34387773952

約数和(自身を除く): 13482495649

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 421, 1263, 2947, 5473, 8841, 16419, 38311, 114933, 181891, 545673, 1273237, 2364583, 3819711, 7093749, 16552081, 49656243, 76576111, 229728333, 536032777, 995489443, 1608098331, 2986468329, 6968426101, 20905278303]

約数ペア:

[(1, 20905278303), (3, 6968426101), (7, 2986468329), (13, 1608098331), (21, 995489443), (39, 536032777), (91, 229728333), (273, 76576111), (421, 49656243), (1263, 16552081), (2947, 7093749), (5473, 3819711), (8841, 2364583), (16419, 1273237), (38311, 545673), (114933, 181891)]