2051131257

素因数分解:

$3^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{137}}^1\times {\mathrm{2221}}^1$

素因数の和:2478

約数の個数: 48

約数和(自身を含む): 3444135552

約数和(自身を除く): 1393004295

約数列:

[1, 3, 7, 9, 21, 63, 107, 137, 321, 411, 749, 959, 963, 1233, 2221, 2247, 2877, 6663, 6741, 8631, 14659, 15547, 19989, 43977, 46641, 102613, 131931, 139923, 237647, 304277, 307839, 712941, 912831, 923517, 1663529, 2129939, 2138823, 2738493, 4990587, 6389817, 14971761, 19169451, 32557639, 97672917, 227903473, 293018751, 683710419, 2051131257]

約数ペア:

[(1, 2051131257), (3, 683710419), (7, 293018751), (9, 227903473), (21, 97672917), (63, 32557639), (107, 19169451), (137, 14971761), (321, 6389817), (411, 4990587), (749, 2738493), (959, 2138823), (963, 2129939), (1233, 1663529), (2221, 923517), (2247, 912831), (2877, 712941), (6663, 307839), (6741, 304277), (8631, 237647), (14659, 139923), (15547, 131931), (19989, 102613), (43977, 46641)]