21000657617

素因数分解:

${\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{191}}^1\times {\mathrm{2609}}^1$

素因数の和:2921

約数の個数: 32

約数和(自身を含む): 23308093440

約数和(自身を除く): 2307435823

約数列:

[1, 17, 37, 67, 191, 629, 1139, 2479, 2609, 3247, 7067, 12797, 42143, 44353, 96533, 120139, 174803, 217549, 473489, 498319, 1641061, 2971651, 6467711, 8049313, 8471423, 18437803, 33387373, 109951087, 313442651, 567585341, 1235332801, 21000657617]

約数ペア:

[(1, 21000657617), (17, 1235332801), (37, 567585341), (67, 313442651), (191, 109951087), (629, 33387373), (1139, 18437803), (2479, 8471423), (2609, 8049313), (3247, 6467711), (7067, 2971651), (12797, 1641061), (42143, 498319), (44353, 473489), (96533, 217549), (120139, 174803)]