21636615

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1$

素因数の和:181

約数の個数: 96

約数和(自身を含む): 47190528

約数和(自身を除く): 25553913

約数列:

[1, 3, 5, 7, 11, 13, 15, 21, 33, 35, 39, 55, 65, 77, 91, 105, 121, 131, 143, 165, 195, 231, 273, 363, 385, 393, 429, 455, 605, 655, 715, 847, 917, 1001, 1155, 1365, 1441, 1573, 1703, 1815, 1965, 2145, 2541, 2751, 3003, 4235, 4323, 4585, 4719, 5005, 5109, 7205, 7865, 8515, 10087, 11011, 11921, 12705, 13755, 15015, 15851, 18733, 21615, 23595, 25545, 30261, 33033, 35763, 47553, 50435, 55055, 56199, 59605, 79255, 93665, 110957, 131131, 151305, 165165, 178815, 206063, 237765, 280995, 332871, 393393, 554785, 618189, 655655, 1030315, 1442441, 1664355, 1966965, 3090945, 4327323, 7212205, 21636615]

約数ペア:

[(1, 21636615), (3, 7212205), (5, 4327323), (7, 3090945), (11, 1966965), (13, 1664355), (15, 1442441), (21, 1030315), (33, 655655), (35, 618189), (39, 554785), (55, 393393), (65, 332871), (77, 280995), (91, 237765), (105, 206063), (121, 178815), (131, 165165), (143, 151305), (165, 131131), (195, 110957), (231, 93665), (273, 79255), (363, 59605), (385, 56199), (393, 55055), (429, 50435), (455, 47553), (605, 35763), (655, 33033), (715, 30261), (847, 25545), (917, 23595), (1001, 21615), (1155, 18733), (1365, 15851), (1441, 15015), (1573, 13755), (1703, 12705), (1815, 11921), (1965, 11011), (2145, 10087), (2541, 8515), (2751, 7865), (3003, 7205), (4235, 5109), (4323, 5005), (4585, 4719)]