21807840

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{45433}}^1$

素因数の和:45451

約数の個数: 48

約数和(自身を含む): 68696208

約数和(自身を除く): 46888368

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 45433, 90866, 136299, 181732, 227165, 272598, 363464, 454330, 545196, 681495, 726928, 908660, 1090392, 1362990, 1453856, 1817320, 2180784, 2725980, 3634640, 4361568, 5451960, 7269280, 10903920, 21807840]

約数ペア:

[(1, 21807840), (2, 10903920), (3, 7269280), (4, 5451960), (5, 4361568), (6, 3634640), (8, 2725980), (10, 2180784), (12, 1817320), (15, 1453856), (16, 1362990), (20, 1090392), (24, 908660), (30, 726928), (32, 681495), (40, 545196), (48, 454330), (60, 363464), (80, 272598), (96, 227165), (120, 181732), (160, 136299), (240, 90866), (480, 45433)]