21050848

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7229}}^1$

素因数の和:7259

約数の個数: 48

約数和(自身を含む): 51014880

約数和(自身を除く): 29964032

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 91, 104, 112, 182, 208, 224, 364, 416, 728, 1456, 2912, 7229, 14458, 28916, 50603, 57832, 93977, 101206, 115664, 187954, 202412, 231328, 375908, 404824, 657839, 751816, 809648, 1315678, 1503632, 1619296, 2631356, 3007264, 5262712, 10525424, 21050848]

約数ペア:

[(1, 21050848), (2, 10525424), (4, 5262712), (7, 3007264), (8, 2631356), (13, 1619296), (14, 1503632), (16, 1315678), (26, 809648), (28, 751816), (32, 657839), (52, 404824), (56, 375908), (91, 231328), (104, 202412), (112, 187954), (182, 115664), (208, 101206), (224, 93977), (364, 57832), (416, 50603), (728, 28916), (1456, 14458), (2912, 7229)]