861798

素因数分解:

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

素因数の和:117

約数の個数: 48

約数和(自身を含む): 2121984

約数和(自身を除く): 1260186

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 34, 42, 51, 71, 102, 119, 142, 213, 238, 289, 357, 426, 497, 578, 714, 867, 994, 1207, 1491, 1734, 2023, 2414, 2982, 3621, 4046, 6069, 7242, 8449, 12138, 16898, 20519, 25347, 41038, 50694, 61557, 123114, 143633, 287266, 430899, 861798]

約数ペア:

[(1, 861798), (2, 430899), (3, 287266), (6, 143633), (7, 123114), (14, 61557), (17, 50694), (21, 41038), (34, 25347), (42, 20519), (51, 16898), (71, 12138), (102, 8449), (119, 7242), (142, 6069), (213, 4046), (238, 3621), (289, 2982), (357, 2414), (426, 2023), (497, 1734), (578, 1491), (714, 1207), (867, 994)]