21556620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{119759}}^1$

素因数の和:119774

約数の個数: 36

約数和(自身を含む): 65388960

約数和(自身を除く): 43832340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 119759, 239518, 359277, 479036, 598795, 718554, 1077831, 1197590, 1437108, 1796385, 2155662, 2395180, 3592770, 4311324, 5389155, 7185540, 10778310, 21556620]

約数ペア:

[(1, 21556620), (2, 10778310), (3, 7185540), (4, 5389155), (5, 4311324), (6, 3592770), (9, 2395180), (10, 2155662), (12, 1796385), (15, 1437108), (18, 1197590), (20, 1077831), (30, 718554), (36, 598795), (45, 479036), (60, 359277), (90, 239518), (180, 119759)]