20798024

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6451}}^1$

素因数の和:6501

約数の個数: 32

約数和(自身を含む): 43357440

約数和(自身を除く): 22559416

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 1612, 3224, 6451, 12902, 25804, 51608, 83863, 167726, 199981, 335452, 399962, 670904, 799924, 1599848, 2599753, 5199506, 10399012, 20798024]

約数ペア:

[(1, 20798024), (2, 10399012), (4, 5199506), (8, 2599753), (13, 1599848), (26, 799924), (31, 670904), (52, 399962), (62, 335452), (104, 199981), (124, 167726), (248, 83863), (403, 51608), (806, 25804), (1612, 12902), (3224, 6451)]