21653450

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4759}}^1$

素因数の和:4791

約数の個数: 48

約数和(自身を含む): 49580160

約数和(自身を除く): 27926710

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 50, 65, 70, 91, 130, 175, 182, 325, 350, 455, 650, 910, 2275, 4550, 4759, 9518, 23795, 33313, 47590, 61867, 66626, 118975, 123734, 166565, 237950, 309335, 333130, 433069, 618670, 832825, 866138, 1546675, 1665650, 2165345, 3093350, 4330690, 10826725, 21653450]

約数ペア:

[(1, 21653450), (2, 10826725), (5, 4330690), (7, 3093350), (10, 2165345), (13, 1665650), (14, 1546675), (25, 866138), (26, 832825), (35, 618670), (50, 433069), (65, 333130), (70, 309335), (91, 237950), (130, 166565), (175, 123734), (182, 118975), (325, 66626), (350, 61867), (455, 47590), (650, 33313), (910, 23795), (2275, 9518), (4550, 4759)]