21219366

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{263}}^1$

素因数の和:405

約数の個数: 64

約数和(自身を含む): 52005888

約数和(自身を除く): 30786522

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 34, 42, 51, 102, 113, 119, 226, 238, 263, 339, 357, 526, 678, 714, 789, 791, 1578, 1582, 1841, 1921, 2373, 3682, 3842, 4471, 4746, 5523, 5763, 8942, 11046, 11526, 13413, 13447, 26826, 26894, 29719, 31297, 40341, 59438, 62594, 80682, 89157, 93891, 178314, 187782, 208033, 416066, 505223, 624099, 1010446, 1248198, 1515669, 3031338, 3536561, 7073122, 10609683, 21219366]

約数ペア:

[(1, 21219366), (2, 10609683), (3, 7073122), (6, 3536561), (7, 3031338), (14, 1515669), (17, 1248198), (21, 1010446), (34, 624099), (42, 505223), (51, 416066), (102, 208033), (113, 187782), (119, 178314), (226, 93891), (238, 89157), (263, 80682), (339, 62594), (357, 59438), (526, 40341), (678, 31297), (714, 29719), (789, 26894), (791, 26826), (1578, 13447), (1582, 13413), (1841, 11526), (1921, 11046), (2373, 8942), (3682, 5763), (3842, 5523), (4471, 4746)]