19782018

素因数分解:

$2^1\times 3^2\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{349}}^1$

素因数の和:471

約数の個数: 48

約数和(自身を含む): 44553600

約数和(自身を除く): 24771582

約数列:

[1, 2, 3, 6, 9, 18, 47, 67, 94, 134, 141, 201, 282, 349, 402, 423, 603, 698, 846, 1047, 1206, 2094, 3141, 3149, 6282, 6298, 9447, 16403, 18894, 23383, 28341, 32806, 46766, 49209, 56682, 70149, 98418, 140298, 147627, 210447, 295254, 420894, 1099001, 2198002, 3297003, 6594006, 9891009, 19782018]

約数ペア:

[(1, 19782018), (2, 9891009), (3, 6594006), (6, 3297003), (9, 2198002), (18, 1099001), (47, 420894), (67, 295254), (94, 210447), (134, 147627), (141, 140298), (201, 98418), (282, 70149), (349, 56682), (402, 49209), (423, 46766), (603, 32806), (698, 28341), (846, 23383), (1047, 18894), (1206, 16403), (2094, 9447), (3141, 6298), (3149, 6282)]