21408045484

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1361}}^1\times {\mathrm{29567}}^1$

素因数の和:30958

約数の個数: 48

約数和(自身を含む): 45104209920

約数和(自身を除く): 23696164436

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 1361, 2722, 5444, 9527, 19054, 25859, 29567, 38108, 51718, 59134, 103436, 118268, 181013, 206969, 362026, 413938, 561773, 724052, 827876, 1123546, 2247092, 3932411, 7864822, 15729644, 40240687, 80481374, 160962748, 281684809, 563369618, 764573053, 1126739236, 1529146106, 3058292212, 5352011371, 10704022742, 21408045484]

約数ペア:

[(1, 21408045484), (2, 10704022742), (4, 5352011371), (7, 3058292212), (14, 1529146106), (19, 1126739236), (28, 764573053), (38, 563369618), (76, 281684809), (133, 160962748), (266, 80481374), (532, 40240687), (1361, 15729644), (2722, 7864822), (5444, 3932411), (9527, 2247092), (19054, 1123546), (25859, 827876), (29567, 724052), (38108, 561773), (51718, 413938), (59134, 362026), (103436, 206969), (118268, 181013)]