21393112440

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{25467991}}^1$

素因数の和:25468012

約数の個数: 64

約数和(自身を含む): 73347816960

約数和(自身を除く): 51954704520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 25467991, 50935982, 76403973, 101871964, 127339955, 152807946, 178275937, 203743928, 254679910, 305615892, 356551874, 382019865, 509359820, 534827811, 611231784, 713103748, 764039730, 891379685, 1018719640, 1069655622, 1426207496, 1528079460, 1782759370, 2139311244, 2674139055, 3056158920, 3565518740, 4278622488, 5348278110, 7131037480, 10696556220, 21393112440]

約数ペア:

[(1, 21393112440), (2, 10696556220), (3, 7131037480), (4, 5348278110), (5, 4278622488), (6, 3565518740), (7, 3056158920), (8, 2674139055), (10, 2139311244), (12, 1782759370), (14, 1528079460), (15, 1426207496), (20, 1069655622), (21, 1018719640), (24, 891379685), (28, 764039730), (30, 713103748), (35, 611231784), (40, 534827811), (42, 509359820), (56, 382019865), (60, 356551874), (70, 305615892), (84, 254679910), (105, 203743928), (120, 178275937), (140, 152807946), (168, 127339955), (210, 101871964), (280, 76403973), (420, 50935982), (840, 25467991)]