20209435197

素因数分解:

$3^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{547}}^1\times {\mathrm{1979}}^1$

素因数の和:2670

約数の個数: 48

約数和(自身を含む): 31665807360

約数和(自身を除く): 11456372163

約数列:

[1, 3, 7, 21, 49, 127, 147, 381, 547, 889, 1641, 1979, 2667, 3829, 5937, 6223, 11487, 13853, 18669, 26803, 41559, 69469, 80409, 96971, 208407, 251333, 290913, 486283, 753999, 1082513, 1458849, 1759331, 3247539, 3403981, 5277993, 7577591, 10211943, 12315317, 22732773, 36945951, 53043137, 137479151, 159129411, 412437453, 962354057, 2887062171, 6736478399, 20209435197]

約数ペア:

[(1, 20209435197), (3, 6736478399), (7, 2887062171), (21, 962354057), (49, 412437453), (127, 159129411), (147, 137479151), (381, 53043137), (547, 36945951), (889, 22732773), (1641, 12315317), (1979, 10211943), (2667, 7577591), (3829, 5277993), (5937, 3403981), (6223, 3247539), (11487, 1759331), (13853, 1458849), (18669, 1082513), (26803, 753999), (41559, 486283), (69469, 290913), (80409, 251333), (96971, 208407)]