20561543519

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1783}}^1\times {\mathrm{2399}}^1$

素因数の和:4235

約数の個数: 32

約数和(自身を含む): 24662016000

約数和(自身を除く): 4100472481

約数列:

[1, 11, 19, 23, 209, 253, 437, 1783, 2399, 4807, 19613, 26389, 33877, 41009, 45581, 55177, 372647, 451099, 501391, 606947, 779171, 1048363, 4277417, 8570881, 11531993, 47051587, 81270923, 98380591, 893980153, 1082186501, 1869231229, 20561543519]

約数ペア:

[(1, 20561543519), (11, 1869231229), (19, 1082186501), (23, 893980153), (209, 98380591), (253, 81270923), (437, 47051587), (1783, 11531993), (2399, 8570881), (4807, 4277417), (19613, 1048363), (26389, 779171), (33877, 606947), (41009, 501391), (45581, 451099), (55177, 372647)]