20583720157

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{555761}}^1$

素因数の和:555829

約数の個数: 32

約数和(自身を含む): 28383876864

約数和(自身を除く): 7800156707

約数列:

[1, 7, 11, 13, 37, 77, 91, 143, 259, 407, 481, 1001, 2849, 3367, 5291, 37037, 555761, 3890327, 6113371, 7224893, 20563157, 42793597, 50574251, 79473823, 143942099, 226194727, 267321041, 556316761, 1583363089, 1871247287, 2940531451, 20583720157]

約数ペア:

[(1, 20583720157), (7, 2940531451), (11, 1871247287), (13, 1583363089), (37, 556316761), (77, 267321041), (91, 226194727), (143, 143942099), (259, 79473823), (407, 50574251), (481, 42793597), (1001, 20563157), (2849, 7224893), (3367, 6113371), (5291, 3890327), (37037, 555761)]