18937688

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{433}}^1$

素因数の和:528

約数の個数: 64

約数和(自身を含む): 44997120

約数和(自身を除く): 26059432

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 71, 77, 88, 142, 154, 284, 308, 433, 497, 568, 616, 781, 866, 994, 1562, 1732, 1988, 3031, 3124, 3464, 3976, 4763, 5467, 6062, 6248, 9526, 10934, 12124, 19052, 21868, 24248, 30743, 33341, 38104, 43736, 61486, 66682, 122972, 133364, 215201, 245944, 266728, 338173, 430402, 676346, 860804, 1352692, 1721608, 2367211, 2705384, 4734422, 9468844, 18937688]

約数ペア:

[(1, 18937688), (2, 9468844), (4, 4734422), (7, 2705384), (8, 2367211), (11, 1721608), (14, 1352692), (22, 860804), (28, 676346), (44, 430402), (56, 338173), (71, 266728), (77, 245944), (88, 215201), (142, 133364), (154, 122972), (284, 66682), (308, 61486), (433, 43736), (497, 38104), (568, 33341), (616, 30743), (781, 24248), (866, 21868), (994, 19052), (1562, 12124), (1732, 10934), (1988, 9526), (3031, 6248), (3124, 6062), (3464, 5467), (3976, 4763)]