20280366

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^2\times {\mathrm{823}}^1$

素因数の和:905

約数の個数: 36

約数和(自身を含む): 45215352

約数和(自身を除く): 24934986

約数列:

[1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333, 666, 823, 1369, 1646, 2469, 2738, 4107, 4938, 7407, 8214, 12321, 14814, 24642, 30451, 60902, 91353, 182706, 274059, 548118, 1126687, 2253374, 3380061, 6760122, 10140183, 20280366]

約数ペア:

[(1, 20280366), (2, 10140183), (3, 6760122), (6, 3380061), (9, 2253374), (18, 1126687), (37, 548118), (74, 274059), (111, 182706), (222, 91353), (333, 60902), (666, 30451), (823, 24642), (1369, 14814), (1646, 12321), (2469, 8214), (2738, 7407), (4107, 4938)]