165721221

素因数分解:

$3^4\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{359}}^1$

素因数の和:551

約数の個数: 40

約数和(自身を含む): 256132800

約数和(自身を除く): 90411579

約数列:

[1, 3, 9, 27, 41, 81, 123, 139, 359, 369, 417, 1077, 1107, 1251, 3231, 3321, 3753, 5699, 9693, 11259, 14719, 17097, 29079, 44157, 49901, 51291, 132471, 149703, 153873, 397413, 449109, 461619, 1192239, 1347327, 2045941, 4041981, 6137823, 18413469, 55240407, 165721221]

約数ペア:

[(1, 165721221), (3, 55240407), (9, 18413469), (27, 6137823), (41, 4041981), (81, 2045941), (123, 1347327), (139, 1192239), (359, 461619), (369, 449109), (417, 397413), (1077, 153873), (1107, 149703), (1251, 132471), (3231, 51291), (3321, 49901), (3753, 44157), (5699, 29079), (9693, 17097), (11259, 14719)]