21005670

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4349}}^1$

素因数の和:4389

約数の個数: 64

約数和(自身を含む): 60134400

約数和(自身を除く): 39128730

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 23, 30, 35, 42, 46, 69, 70, 105, 115, 138, 161, 210, 230, 322, 345, 483, 690, 805, 966, 1610, 2415, 4349, 4830, 8698, 13047, 21745, 26094, 30443, 43490, 60886, 65235, 91329, 100027, 130470, 152215, 182658, 200054, 300081, 304430, 456645, 500135, 600162, 700189, 913290, 1000270, 1400378, 1500405, 2100567, 3000810, 3500945, 4201134, 7001890, 10502835, 21005670]

約数ペア:

[(1, 21005670), (2, 10502835), (3, 7001890), (5, 4201134), (6, 3500945), (7, 3000810), (10, 2100567), (14, 1500405), (15, 1400378), (21, 1000270), (23, 913290), (30, 700189), (35, 600162), (42, 500135), (46, 456645), (69, 304430), (70, 300081), (105, 200054), (115, 182658), (138, 152215), (161, 130470), (210, 100027), (230, 91329), (322, 65235), (345, 60886), (483, 43490), (690, 30443), (805, 26094), (966, 21745), (1610, 13047), (2415, 8698), (4349, 4830)]