20784504

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{66617}}^1$

素因数の和:66639

約数の個数: 32

約数和(自身を含む): 55959120

約数和(自身を除く): 35174616

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 66617, 133234, 199851, 266468, 399702, 532936, 799404, 866021, 1598808, 1732042, 2598063, 3464084, 5196126, 6928168, 10392252, 20784504]

約数ペア:

[(1, 20784504), (2, 10392252), (3, 6928168), (4, 5196126), (6, 3464084), (8, 2598063), (12, 1732042), (13, 1598808), (24, 866021), (26, 799404), (39, 532936), (52, 399702), (78, 266468), (104, 199851), (156, 133234), (312, 66617)]