18438486

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:221

約数の個数: 64

約数和(自身を含む): 42197760

約数和(自身を除く): 23759274

約数列:

[1, 2, 3, 6, 11, 22, 33, 43, 66, 73, 86, 89, 129, 146, 178, 219, 258, 267, 438, 473, 534, 803, 946, 979, 1419, 1606, 1958, 2409, 2838, 2937, 3139, 3827, 4818, 5874, 6278, 6497, 7654, 9417, 11481, 12994, 18834, 19491, 22962, 34529, 38982, 42097, 69058, 71467, 84194, 103587, 126291, 142934, 207174, 214401, 252582, 279371, 428802, 558742, 838113, 1676226, 3073081, 6146162, 9219243, 18438486]

約数ペア:

[(1, 18438486), (2, 9219243), (3, 6146162), (6, 3073081), (11, 1676226), (22, 838113), (33, 558742), (43, 428802), (66, 279371), (73, 252582), (86, 214401), (89, 207174), (129, 142934), (146, 126291), (178, 103587), (219, 84194), (258, 71467), (267, 69058), (438, 42097), (473, 38982), (534, 34529), (803, 22962), (946, 19491), (979, 18834), (1419, 12994), (1606, 11481), (1958, 9417), (2409, 7654), (2838, 6497), (2937, 6278), (3139, 5874), (3827, 4818)]