18121582766

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{70891}}^1$

素因数の和:70981

約数の個数: 48

約数和(自身を含む): 33789962880

約数和(自身を除く): 15668380114

約数列:

[1, 2, 7, 14, 19, 31, 38, 62, 133, 217, 266, 434, 589, 961, 1178, 1922, 4123, 6727, 8246, 13454, 18259, 36518, 70891, 127813, 141782, 255626, 496237, 992474, 1346929, 2197621, 2693858, 4395242, 9428503, 15383347, 18857006, 30766694, 41754799, 68126251, 83509598, 136252502, 292283593, 476883757, 584567186, 953767514, 1294398769, 2588797538, 9060791383, 18121582766]

約数ペア:

[(1, 18121582766), (2, 9060791383), (7, 2588797538), (14, 1294398769), (19, 953767514), (31, 584567186), (38, 476883757), (62, 292283593), (133, 136252502), (217, 83509598), (266, 68126251), (434, 41754799), (589, 30766694), (961, 18857006), (1178, 15383347), (1922, 9428503), (4123, 4395242), (6727, 2693858), (8246, 2197621), (13454, 1346929), (18259, 992474), (36518, 496237), (70891, 255626), (127813, 141782)]