19783956

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1667}}^1$

素因数の和:1740

約数の個数: 48

約数和(自身を含む): 49319424

約数和(自身を除く): 29535468

約数列:

[1, 2, 3, 4, 6, 12, 23, 43, 46, 69, 86, 92, 129, 138, 172, 258, 276, 516, 989, 1667, 1978, 2967, 3334, 3956, 5001, 5934, 6668, 10002, 11868, 20004, 38341, 71681, 76682, 115023, 143362, 153364, 215043, 230046, 286724, 430086, 460092, 860172, 1648663, 3297326, 4945989, 6594652, 9891978, 19783956]

約数ペア:

[(1, 19783956), (2, 9891978), (3, 6594652), (4, 4945989), (6, 3297326), (12, 1648663), (23, 860172), (43, 460092), (46, 430086), (69, 286724), (86, 230046), (92, 215043), (129, 153364), (138, 143362), (172, 115023), (258, 76682), (276, 71681), (516, 38341), (989, 20004), (1667, 11868), (1978, 10002), (2967, 6668), (3334, 5934), (3956, 5001)]