20627901

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{907}}^1$

素因数の和:958

約数の個数: 36

約数和(自身を含む): 35978592

約数和(自身を除く): 15350691

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 361, 399, 907, 1083, 1197, 2527, 2721, 3249, 6349, 7581, 8163, 17233, 19047, 22743, 51699, 57141, 120631, 155097, 327427, 361893, 982281, 1085679, 2291989, 2946843, 6875967, 20627901]

約数ペア:

[(1, 20627901), (3, 6875967), (7, 2946843), (9, 2291989), (19, 1085679), (21, 982281), (57, 361893), (63, 327427), (133, 155097), (171, 120631), (361, 57141), (399, 51699), (907, 22743), (1083, 19047), (1197, 17233), (2527, 8163), (2721, 7581), (3249, 6349)]