21548254

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{601}}^1$

素因数の和:820

約数の個数: 32

約数和(自身を含む): 40049856

約数和(自身を除く): 18501602

約数列:

[1, 2, 7, 13, 14, 26, 91, 182, 197, 394, 601, 1202, 1379, 2561, 2758, 4207, 5122, 7813, 8414, 15626, 17927, 35854, 54691, 109382, 118397, 236794, 828779, 1539161, 1657558, 3078322, 10774127, 21548254]

約数ペア:

[(1, 21548254), (2, 10774127), (7, 3078322), (13, 1657558), (14, 1539161), (26, 828779), (91, 236794), (182, 118397), (197, 109382), (394, 54691), (601, 35854), (1202, 17927), (1379, 15626), (2561, 8414), (2758, 7813), (4207, 5122)]