20825294

素因数分解:

$2^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:201

約数の個数: 48

約数和(自身を含む): 38265696

約数和(自身を除く): 17440402

約数列:

[1, 2, 7, 14, 41, 49, 71, 73, 82, 98, 142, 146, 287, 497, 511, 574, 994, 1022, 2009, 2911, 2993, 3479, 3577, 4018, 5183, 5822, 5986, 6958, 7154, 10366, 20377, 20951, 36281, 40754, 41902, 72562, 142639, 146657, 212503, 253967, 285278, 293314, 425006, 507934, 1487521, 2975042, 10412647, 20825294]

約数ペア:

[(1, 20825294), (2, 10412647), (7, 2975042), (14, 1487521), (41, 507934), (49, 425006), (71, 293314), (73, 285278), (82, 253967), (98, 212503), (142, 146657), (146, 142639), (287, 72562), (497, 41902), (511, 40754), (574, 36281), (994, 20951), (1022, 20377), (2009, 10366), (2911, 7154), (2993, 6958), (3479, 5986), (3577, 5822), (4018, 5183)]