21000984070

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{10831}}^1\times {\mathrm{17627}}^1$

素因数の和:28476

約数の個数: 32

約数和(自身を含む): 41244443136

約数和(自身を除く): 20243459066

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 10831, 17627, 21662, 35254, 54155, 88135, 108310, 119141, 176270, 193897, 238282, 387794, 595705, 969485, 1191410, 1938970, 190918037, 381836074, 954590185, 1909180370, 2100098407, 4200196814, 10500492035, 21000984070]

約数ペア:

[(1, 21000984070), (2, 10500492035), (5, 4200196814), (10, 2100098407), (11, 1909180370), (22, 954590185), (55, 381836074), (110, 190918037), (10831, 1938970), (17627, 1191410), (21662, 969485), (35254, 595705), (54155, 387794), (88135, 238282), (108310, 193897), (119141, 176270)]