21409562

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^2$

素因数の和:290

約数の個数: 24

約数和(自身を含む): 34965756

約数和(自身を除く): 13556194

約数列:

[1, 2, 17, 34, 53, 106, 109, 218, 901, 1802, 1853, 3706, 5777, 11554, 11881, 23762, 98209, 196418, 201977, 403954, 629693, 1259386, 10704781, 21409562]

約数ペア:

[(1, 21409562), (2, 10704781), (17, 1259386), (34, 629693), (53, 403954), (106, 201977), (109, 196418), (218, 98209), (901, 23762), (1802, 11881), (1853, 11554), (3706, 5777)]