20678892

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1867}}^1$

素因数の和:1958

約数の個数: 48

約数和(自身を含む): 52722432

約数和(自身を除く): 32043540

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 71, 78, 142, 156, 213, 284, 426, 852, 923, 1846, 1867, 2769, 3692, 3734, 5538, 5601, 7468, 11076, 11202, 22404, 24271, 48542, 72813, 97084, 132557, 145626, 265114, 291252, 397671, 530228, 795342, 1590684, 1723241, 3446482, 5169723, 6892964, 10339446, 20678892]

約数ペア:

[(1, 20678892), (2, 10339446), (3, 6892964), (4, 5169723), (6, 3446482), (12, 1723241), (13, 1590684), (26, 795342), (39, 530228), (52, 397671), (71, 291252), (78, 265114), (142, 145626), (156, 132557), (213, 97084), (284, 72813), (426, 48542), (852, 24271), (923, 22404), (1846, 11202), (1867, 11076), (2769, 7468), (3692, 5601), (3734, 5538)]