21283496

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{10771}}^1$

素因数の和:10809

約数の個数: 32

約数和(自身を含む): 45242400

約数和(自身を除く): 23958904

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 10771, 21542, 43084, 86168, 140023, 204649, 280046, 409298, 560092, 818596, 1120184, 1637192, 2660437, 5320874, 10641748, 21283496]

約数ペア:

[(1, 21283496), (2, 10641748), (4, 5320874), (8, 2660437), (13, 1637192), (19, 1120184), (26, 818596), (38, 560092), (52, 409298), (76, 280046), (104, 204649), (152, 140023), (247, 86168), (494, 43084), (988, 21542), (1976, 10771)]