21006098127

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{276247}}^1$

素因数の和:276348

約数の個数: 48

約数和(自身を含む): 37233810432

約数和(自身を除く): 16227712305

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 71, 119, 153, 213, 357, 497, 639, 1071, 1207, 1491, 3621, 4473, 8449, 10863, 25347, 76041, 276247, 828741, 1933729, 2486223, 4696199, 5801187, 14088597, 17403561, 19613537, 32873393, 42265791, 58840611, 98620179, 137294759, 176521833, 295860537, 333430129, 411884277, 1000290387, 1235652831, 2334010903, 3000871161, 7002032709, 21006098127]

約数ペア:

[(1, 21006098127), (3, 7002032709), (7, 3000871161), (9, 2334010903), (17, 1235652831), (21, 1000290387), (51, 411884277), (63, 333430129), (71, 295860537), (119, 176521833), (153, 137294759), (213, 98620179), (357, 58840611), (497, 42265791), (639, 32873393), (1071, 19613537), (1207, 17403561), (1491, 14088597), (3621, 5801187), (4473, 4696199), (8449, 2486223), (10863, 1933729), (25347, 828741), (76041, 276247)]