19540336

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{167}}^1$

素因数の和:349

約数の個数: 40

約数和(自身を含む): 38997504

約数和(自身を除く): 19457168

約数列:

[1, 2, 4, 8, 16, 71, 103, 142, 167, 206, 284, 334, 412, 568, 668, 824, 1136, 1336, 1648, 2672, 7313, 11857, 14626, 17201, 23714, 29252, 34402, 47428, 58504, 68804, 94856, 117008, 137608, 189712, 275216, 1221271, 2442542, 4885084, 9770168, 19540336]

約数ペア:

[(1, 19540336), (2, 9770168), (4, 4885084), (8, 2442542), (16, 1221271), (71, 275216), (103, 189712), (142, 137608), (167, 117008), (206, 94856), (284, 68804), (334, 58504), (412, 47428), (568, 34402), (668, 29252), (824, 23714), (1136, 17201), (1336, 14626), (1648, 11857), (2672, 7313)]