28241556

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19777}}^1$

素因数の和:19808

約数の個数: 48

約数和(自身を含む): 79744896

約数和(自身を除く): 51503340

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 28, 34, 42, 51, 68, 84, 102, 119, 204, 238, 357, 476, 714, 1428, 19777, 39554, 59331, 79108, 118662, 138439, 237324, 276878, 336209, 415317, 553756, 672418, 830634, 1008627, 1344836, 1661268, 2017254, 2353463, 4034508, 4706926, 7060389, 9413852, 14120778, 28241556]

約数ペア:

[(1, 28241556), (2, 14120778), (3, 9413852), (4, 7060389), (6, 4706926), (7, 4034508), (12, 2353463), (14, 2017254), (17, 1661268), (21, 1344836), (28, 1008627), (34, 830634), (42, 672418), (51, 553756), (68, 415317), (84, 336209), (102, 276878), (119, 237324), (204, 138439), (238, 118662), (357, 79108), (476, 59331), (714, 39554), (1428, 19777)]