21237454

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{181}}^1$

素因数の和:253

約数の個数: 48

約数和(自身を含む): 40229280

約数和(自身を除く): 18991826

約数列:

[1, 2, 7, 14, 17, 29, 34, 58, 119, 181, 203, 238, 289, 362, 406, 493, 578, 986, 1267, 2023, 2534, 3077, 3451, 4046, 5249, 6154, 6902, 8381, 10498, 16762, 21539, 36743, 43078, 52309, 58667, 73486, 89233, 104618, 117334, 178466, 366163, 624631, 732326, 1249262, 1516961, 3033922, 10618727, 21237454]

約数ペア:

[(1, 21237454), (2, 10618727), (7, 3033922), (14, 1516961), (17, 1249262), (29, 732326), (34, 624631), (58, 366163), (119, 178466), (181, 117334), (203, 104618), (238, 89233), (289, 73486), (362, 58667), (406, 52309), (493, 43078), (578, 36743), (986, 21539), (1267, 16762), (2023, 10498), (2534, 8381), (3077, 6902), (3451, 6154), (4046, 5249)]