21383824

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1021}}^1$

素因数の和:1064

約数の個数: 80

約数和(自身を含む): 54746496

約数和(自身を除く): 33362672

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 17, 22, 28, 34, 44, 56, 68, 77, 88, 112, 119, 136, 154, 176, 187, 238, 272, 308, 374, 476, 616, 748, 952, 1021, 1232, 1309, 1496, 1904, 2042, 2618, 2992, 4084, 5236, 7147, 8168, 10472, 11231, 14294, 16336, 17357, 20944, 22462, 28588, 34714, 44924, 57176, 69428, 78617, 89848, 114352, 121499, 138856, 157234, 179696, 190927, 242998, 277712, 314468, 381854, 485996, 628936, 763708, 971992, 1257872, 1336489, 1527416, 1943984, 2672978, 3054832, 5345956, 10691912, 21383824]

約数ペア:

[(1, 21383824), (2, 10691912), (4, 5345956), (7, 3054832), (8, 2672978), (11, 1943984), (14, 1527416), (16, 1336489), (17, 1257872), (22, 971992), (28, 763708), (34, 628936), (44, 485996), (56, 381854), (68, 314468), (77, 277712), (88, 242998), (112, 190927), (119, 179696), (136, 157234), (154, 138856), (176, 121499), (187, 114352), (238, 89848), (272, 78617), (308, 69428), (374, 57176), (476, 44924), (616, 34714), (748, 28588), (952, 22462), (1021, 20944), (1232, 17357), (1309, 16336), (1496, 14294), (1904, 11231), (2042, 10472), (2618, 8168), (2992, 7147), (4084, 5236)]