19078268

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 38320128

約数和(自身を除く): 19241860

約数列:

[1, 2, 4, 11, 22, 31, 44, 62, 71, 124, 142, 197, 284, 341, 394, 682, 781, 788, 1364, 1562, 2167, 2201, 3124, 4334, 4402, 6107, 8668, 8804, 12214, 13987, 24211, 24428, 27974, 48422, 55948, 67177, 96844, 134354, 153857, 268708, 307714, 433597, 615428, 867194, 1734388, 4769567, 9539134, 19078268]

約数ペア:

[(1, 19078268), (2, 9539134), (4, 4769567), (11, 1734388), (22, 867194), (31, 615428), (44, 433597), (62, 307714), (71, 268708), (124, 153857), (142, 134354), (197, 96844), (284, 67177), (341, 55948), (394, 48422), (682, 27974), (781, 24428), (788, 24211), (1364, 13987), (1562, 12214), (2167, 8804), (2201, 8668), (3124, 6107), (4334, 4402)]