21109860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5099}}^1$

素因数の和:5137

約数の個数: 72

約数和(自身を含む): 66830400

約数和(自身を除く): 45720540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 5099, 10198, 15297, 20396, 25495, 30594, 45891, 50990, 61188, 76485, 91782, 101980, 117277, 152970, 183564, 229455, 234554, 305940, 351831, 458910, 469108, 586385, 703662, 917820, 1055493, 1172770, 1407324, 1759155, 2110986, 2345540, 3518310, 4221972, 5277465, 7036620, 10554930, 21109860]

約数ペア:

[(1, 21109860), (2, 10554930), (3, 7036620), (4, 5277465), (5, 4221972), (6, 3518310), (9, 2345540), (10, 2110986), (12, 1759155), (15, 1407324), (18, 1172770), (20, 1055493), (23, 917820), (30, 703662), (36, 586385), (45, 469108), (46, 458910), (60, 351831), (69, 305940), (90, 234554), (92, 229455), (115, 183564), (138, 152970), (180, 117277), (207, 101980), (230, 91782), (276, 76485), (345, 61188), (414, 50990), (460, 45891), (690, 30594), (828, 25495), (1035, 20396), (1380, 15297), (2070, 10198), (4140, 5099)]