201275721

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{443}}^1\times {\mathrm{2657}}^1$

素因数の和:3125

約数の個数: 24

約数和(自身を含む): 306839520

約数和(自身を除く): 105563799

約数列:

[1, 3, 9, 19, 57, 171, 443, 1329, 2657, 3987, 7971, 8417, 23913, 25251, 50483, 75753, 151449, 454347, 1177051, 3531153, 10593459, 22363969, 67091907, 201275721]

約数ペア:

[(1, 201275721), (3, 67091907), (9, 22363969), (19, 10593459), (57, 3531153), (171, 1177051), (443, 454347), (1329, 151449), (2657, 75753), (3987, 50483), (7971, 25251), (8417, 23913)]