21728156744

素因数分解:

$2^3\times 7^1\times {\mathrm{419}}^1\times {\mathrm{701}}^1\times {\mathrm{1321}}^1$

素因数の和:2454

約数の個数: 64

約数和(自身を含む): 46773417600

約数和(自身を除く): 25045260856

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 419, 701, 838, 1321, 1402, 1676, 2642, 2804, 2933, 3352, 4907, 5284, 5608, 5866, 9247, 9814, 10568, 11732, 18494, 19628, 23464, 36988, 39256, 73976, 293719, 553499, 587438, 926021, 1106998, 1174876, 1852042, 2056033, 2213996, 2349752, 3704084, 3874493, 4112066, 4427992, 6482147, 7408168, 7748986, 8224132, 12964294, 15497972, 16448264, 25928588, 30995944, 51857176, 388002799, 776005598, 1552011196, 2716019593, 3104022392, 5432039186, 10864078372, 21728156744]

約数ペア:

[(1, 21728156744), (2, 10864078372), (4, 5432039186), (7, 3104022392), (8, 2716019593), (14, 1552011196), (28, 776005598), (56, 388002799), (419, 51857176), (701, 30995944), (838, 25928588), (1321, 16448264), (1402, 15497972), (1676, 12964294), (2642, 8224132), (2804, 7748986), (2933, 7408168), (3352, 6482147), (4907, 4427992), (5284, 4112066), (5608, 3874493), (5866, 3704084), (9247, 2349752), (9814, 2213996), (10568, 2056033), (11732, 1852042), (18494, 1174876), (19628, 1106998), (23464, 926021), (36988, 587438), (39256, 553499), (73976, 293719)]