2021209905

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{15971}}^1$

素因数の和:16062

約数の個数: 64

約数和(自身を含む): 3863946240

約数和(自身を除く): 1842736335

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 59, 65, 143, 165, 177, 195, 295, 429, 649, 715, 767, 885, 1947, 2145, 2301, 3245, 3835, 8437, 9735, 11505, 15971, 25311, 42185, 47913, 79855, 126555, 175681, 207623, 239565, 527043, 622869, 878405, 942289, 1038115, 2283853, 2635215, 2826867, 3114345, 4711445, 6851559, 10365179, 11419265, 12249757, 14134335, 31095537, 34257795, 36749271, 51825895, 61248785, 134747327, 155477685, 183746355, 404241981, 673736635, 2021209905]

約数ペア:

[(1, 2021209905), (3, 673736635), (5, 404241981), (11, 183746355), (13, 155477685), (15, 134747327), (33, 61248785), (39, 51825895), (55, 36749271), (59, 34257795), (65, 31095537), (143, 14134335), (165, 12249757), (177, 11419265), (195, 10365179), (295, 6851559), (429, 4711445), (649, 3114345), (715, 2826867), (767, 2635215), (885, 2283853), (1947, 1038115), (2145, 942289), (2301, 878405), (3245, 622869), (3835, 527043), (8437, 239565), (9735, 207623), (11505, 175681), (15971, 126555), (25311, 79855), (42185, 47913)]