21105315

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{6091}}^1$

素因数の和:6120

約数の個数: 48

約数和(自身を含む): 45616896

約数和(自身を除く): 24511581

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 55, 63, 77, 99, 105, 165, 231, 315, 385, 495, 693, 1155, 3465, 6091, 18273, 30455, 42637, 54819, 67001, 91365, 127911, 201003, 213185, 274095, 335005, 383733, 469007, 603009, 639555, 1005015, 1407021, 1918665, 2345035, 3015045, 4221063, 7035105, 21105315]

約数ペア:

[(1, 21105315), (3, 7035105), (5, 4221063), (7, 3015045), (9, 2345035), (11, 1918665), (15, 1407021), (21, 1005015), (33, 639555), (35, 603009), (45, 469007), (55, 383733), (63, 335005), (77, 274095), (99, 213185), (105, 201003), (165, 127911), (231, 91365), (315, 67001), (385, 54819), (495, 42637), (693, 30455), (1155, 18273), (3465, 6091)]