4013009

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1$

素因数の和:261

約数の個数: 32

約数和(自身を含む): 5698560

約数和(自身を除く): 1685551

約数列:

[1, 7, 11, 13, 19, 77, 91, 133, 143, 209, 211, 247, 1001, 1463, 1477, 1729, 2321, 2717, 2743, 4009, 16247, 19019, 19201, 28063, 30173, 44099, 52117, 211211, 308693, 364819, 573287, 4013009]

約数ペア:

[(1, 4013009), (7, 573287), (11, 364819), (13, 308693), (19, 211211), (77, 52117), (91, 44099), (133, 30173), (143, 28063), (209, 19201), (211, 19019), (247, 16247), (1001, 4009), (1463, 2743), (1477, 2717), (1729, 2321)]