20211453927

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{888689}}^1$

素因数の和:888740

約数の個数: 36

約数和(自身を含む): 35213452560

約数和(自身を除く): 15001998633

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 361, 399, 1083, 1197, 2527, 3249, 7581, 22743, 888689, 2666067, 6220823, 7998201, 16885091, 18662469, 50655273, 55987407, 118195637, 151965819, 320816729, 354586911, 962450187, 1063760733, 2245717103, 2887350561, 6737151309, 20211453927]

約数ペア:

[(1, 20211453927), (3, 6737151309), (7, 2887350561), (9, 2245717103), (19, 1063760733), (21, 962450187), (57, 354586911), (63, 320816729), (133, 151965819), (171, 118195637), (361, 55987407), (399, 50655273), (1083, 18662469), (1197, 16885091), (2527, 7998201), (3249, 6220823), (7581, 2666067), (22743, 888689)]