21379682051

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{25849}}^1$

素因数の和:26079

約数の個数: 32

約数和(自身を含む): 26925360000

約数和(自身を除く): 5545677949

約数列:

[1, 7, 13, 61, 91, 149, 427, 793, 1043, 1937, 5551, 9089, 13559, 25849, 63623, 118157, 180943, 336037, 827099, 1576789, 2352259, 3851501, 11037523, 20498257, 26960507, 50069513, 143487799, 234941561, 350486591, 1644590927, 3054240293, 21379682051]

約数ペア:

[(1, 21379682051), (7, 3054240293), (13, 1644590927), (61, 350486591), (91, 234941561), (149, 143487799), (427, 50069513), (793, 26960507), (1043, 20498257), (1937, 11037523), (5551, 3851501), (9089, 2352259), (13559, 1576789), (25849, 827099), (63623, 336037), (118157, 180943)]