291223821

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{311}}^1$

素因数の和:442

約数の個数: 64

約数和(自身を含む): 490254336

約数和(自身を除く): 199030515

約数列:

[1, 3, 7, 17, 21, 43, 51, 61, 119, 129, 183, 301, 311, 357, 427, 731, 903, 933, 1037, 1281, 2177, 2193, 2623, 3111, 5117, 5287, 6531, 7259, 7869, 13373, 15351, 15861, 18361, 18971, 21777, 37009, 40119, 44591, 55083, 56913, 93611, 111027, 132797, 133773, 227341, 280833, 312137, 322507, 398391, 682023, 815753, 936411, 967521, 1591387, 2257549, 2447259, 4774161, 5710271, 6772647, 13867801, 17130813, 41603403, 97074607, 291223821]

約数ペア:

[(1, 291223821), (3, 97074607), (7, 41603403), (17, 17130813), (21, 13867801), (43, 6772647), (51, 5710271), (61, 4774161), (119, 2447259), (129, 2257549), (183, 1591387), (301, 967521), (311, 936411), (357, 815753), (427, 682023), (731, 398391), (903, 322507), (933, 312137), (1037, 280833), (1281, 227341), (2177, 133773), (2193, 132797), (2623, 111027), (3111, 93611), (5117, 56913), (5287, 55083), (6531, 44591), (7259, 40119), (7869, 37009), (13373, 21777), (15351, 18971), (15861, 18361)]