21162792

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1223}}^1$

素因数の和:1342

約数の個数: 64

約数和(自身を含む): 61102080

約数和(自身を除く): 39939288

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 103, 168, 206, 309, 412, 618, 721, 824, 1223, 1236, 1442, 2163, 2446, 2472, 2884, 3669, 4326, 4892, 5768, 7338, 8561, 8652, 9784, 14676, 17122, 17304, 25683, 29352, 34244, 51366, 68488, 102732, 125969, 205464, 251938, 377907, 503876, 755814, 881783, 1007752, 1511628, 1763566, 2645349, 3023256, 3527132, 5290698, 7054264, 10581396, 21162792]

約数ペア:

[(1, 21162792), (2, 10581396), (3, 7054264), (4, 5290698), (6, 3527132), (7, 3023256), (8, 2645349), (12, 1763566), (14, 1511628), (21, 1007752), (24, 881783), (28, 755814), (42, 503876), (56, 377907), (84, 251938), (103, 205464), (168, 125969), (206, 102732), (309, 68488), (412, 51366), (618, 34244), (721, 29352), (824, 25683), (1223, 17304), (1236, 17122), (1442, 14676), (2163, 9784), (2446, 8652), (2472, 8561), (2884, 7338), (3669, 5768), (4326, 4892)]