21580038

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{647}}^1$

素因数の和:781

約数の個数: 48

約数和(自身を含む): 50038560

約数和(自身を除く): 28458522

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 109, 153, 218, 306, 327, 647, 654, 981, 1294, 1853, 1941, 1962, 3706, 3882, 5559, 5823, 10999, 11118, 11646, 16677, 21998, 32997, 33354, 65994, 70523, 98991, 141046, 197982, 211569, 423138, 634707, 1198891, 1269414, 2397782, 3596673, 7193346, 10790019, 21580038]

約数ペア:

[(1, 21580038), (2, 10790019), (3, 7193346), (6, 3596673), (9, 2397782), (17, 1269414), (18, 1198891), (34, 634707), (51, 423138), (102, 211569), (109, 197982), (153, 141046), (218, 98991), (306, 70523), (327, 65994), (647, 33354), (654, 32997), (981, 21998), (1294, 16677), (1853, 11646), (1941, 11118), (1962, 10999), (3706, 5823), (3882, 5559)]