19987944

素因数分解:

$2^3\times 3^1\times {\mathrm{499}}^1\times {\mathrm{1669}}^1$

素因数の和:2177

約数の個数: 32

約数和(自身を含む): 50100000

約数和(自身を除く): 30112056

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 499, 998, 1497, 1669, 1996, 2994, 3338, 3992, 5007, 5988, 6676, 10014, 11976, 13352, 20028, 40056, 832831, 1665662, 2498493, 3331324, 4996986, 6662648, 9993972, 19987944]

約数ペア:

[(1, 19987944), (2, 9993972), (3, 6662648), (4, 4996986), (6, 3331324), (8, 2498493), (12, 1665662), (24, 832831), (499, 40056), (998, 20028), (1497, 13352), (1669, 11976), (1996, 10014), (2994, 6676), (3338, 5988), (3992, 5007)]