261530973

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:247

約数の個数: 72

約数和(自身を含む): 439083008

約数和(自身を除く): 177552035

約数列:

[1, 3, 9, 11, 31, 33, 61, 93, 99, 121, 127, 183, 279, 341, 363, 381, 549, 671, 1023, 1089, 1143, 1397, 1891, 2013, 3069, 3751, 3937, 4191, 5673, 6039, 7381, 7747, 11253, 11811, 12573, 15367, 17019, 20801, 22143, 23241, 33759, 35433, 43307, 46101, 62403, 66429, 69723, 85217, 129921, 138303, 187209, 228811, 240157, 255651, 389763, 476377, 686433, 720471, 766953, 937387, 1429131, 2059299, 2161413, 2641727, 2812161, 4287393, 7925181, 8436483, 23775543, 29058997, 87176991, 261530973]

約数ペア:

[(1, 261530973), (3, 87176991), (9, 29058997), (11, 23775543), (31, 8436483), (33, 7925181), (61, 4287393), (93, 2812161), (99, 2641727), (121, 2161413), (127, 2059299), (183, 1429131), (279, 937387), (341, 766953), (363, 720471), (381, 686433), (549, 476377), (671, 389763), (1023, 255651), (1089, 240157), (1143, 228811), (1397, 187209), (1891, 138303), (2013, 129921), (3069, 85217), (3751, 69723), (3937, 66429), (4191, 62403), (5673, 46101), (6039, 43307), (7381, 35433), (7747, 33759), (11253, 23241), (11811, 22143), (12573, 20801), (15367, 17019)]