20187685431

素因数分解:

$3^3\times {\mathrm{127}}^2\times {\mathrm{151}}^1\times {\mathrm{307}}^1$

素因数の和:721

約数の個数: 48

約数和(自身を含む): 30443508480

約数和(自身を除く): 10255823049

約数列:

[1, 3, 9, 27, 127, 151, 307, 381, 453, 921, 1143, 1359, 2763, 3429, 4077, 8289, 16129, 19177, 38989, 46357, 48387, 57531, 116967, 139071, 145161, 172593, 350901, 417213, 435483, 517779, 1052703, 1251639, 2435479, 4951603, 5887339, 7306437, 14854809, 17662017, 21919311, 44564427, 52986051, 65757933, 133693281, 158958153, 747692053, 2243076159, 6729228477, 20187685431]

約数ペア:

[(1, 20187685431), (3, 6729228477), (9, 2243076159), (27, 747692053), (127, 158958153), (151, 133693281), (307, 65757933), (381, 52986051), (453, 44564427), (921, 21919311), (1143, 17662017), (1359, 14854809), (2763, 7306437), (3429, 5887339), (4077, 4951603), (8289, 2435479), (16129, 1251639), (19177, 1052703), (38989, 517779), (46357, 435483), (48387, 417213), (57531, 350901), (116967, 172593), (139071, 145161)]