20729254

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{307}}^1$

素因数の和:389

約数の個数: 48

約数和(自身を含む): 39817008

約数和(自身を除く): 19087754

約数列:

[1, 2, 7, 13, 14, 26, 49, 53, 91, 98, 106, 182, 307, 371, 614, 637, 689, 742, 1274, 1378, 2149, 2597, 3991, 4298, 4823, 5194, 7982, 9646, 15043, 16271, 27937, 30086, 32542, 33761, 55874, 67522, 113897, 195559, 211523, 227794, 391118, 423046, 797279, 1480661, 1594558, 2961322, 10364627, 20729254]

約数ペア:

[(1, 20729254), (2, 10364627), (7, 2961322), (13, 1594558), (14, 1480661), (26, 797279), (49, 423046), (53, 391118), (91, 227794), (98, 211523), (106, 195559), (182, 113897), (307, 67522), (371, 55874), (614, 33761), (637, 32542), (689, 30086), (742, 27937), (1274, 16271), (1378, 15043), (2149, 9646), (2597, 7982), (3991, 5194), (4298, 4823)]