18678786

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{263}}^1$

素因数の和:383

約数の個数: 64

約数和(自身を含む): 45619200

約数和(自身を除く): 26940414

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 89, 114, 133, 178, 263, 266, 267, 399, 526, 534, 623, 789, 798, 1246, 1578, 1691, 1841, 1869, 3382, 3682, 3738, 4997, 5073, 5523, 9994, 10146, 11046, 11837, 14991, 23407, 23674, 29982, 34979, 35511, 46814, 69958, 70221, 71022, 104937, 140442, 163849, 209874, 327698, 444733, 491547, 889466, 983094, 1334199, 2668398, 3113131, 6226262, 9339393, 18678786]

約数ペア:

[(1, 18678786), (2, 9339393), (3, 6226262), (6, 3113131), (7, 2668398), (14, 1334199), (19, 983094), (21, 889466), (38, 491547), (42, 444733), (57, 327698), (89, 209874), (114, 163849), (133, 140442), (178, 104937), (263, 71022), (266, 70221), (267, 69958), (399, 46814), (526, 35511), (534, 34979), (623, 29982), (789, 23674), (798, 23407), (1246, 14991), (1578, 11837), (1691, 11046), (1841, 10146), (1869, 9994), (3382, 5523), (3682, 5073), (3738, 4997)]