20793405

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{461}}^1$

素因数の和:597

約数の個数: 32

約数和(自身を含む): 34771968

約数和(自身を除く): 13978563

約数列:

[1, 3, 5, 15, 31, 93, 97, 155, 291, 461, 465, 485, 1383, 1455, 2305, 3007, 6915, 9021, 14291, 15035, 42873, 44717, 45105, 71455, 134151, 214365, 223585, 670755, 1386227, 4158681, 6931135, 20793405]

約数ペア:

[(1, 20793405), (3, 6931135), (5, 4158681), (15, 1386227), (31, 670755), (93, 223585), (97, 214365), (155, 134151), (291, 71455), (461, 45105), (465, 44717), (485, 42873), (1383, 15035), (1455, 14291), (2305, 9021), (3007, 6915)]