21570402

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{509}}^1\times {\mathrm{1009}}^1$

素因数の和:1530

約数の個数: 32

約数和(自身を含む): 49449600

約数和(自身を除く): 27879198

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 509, 1009, 1018, 1527, 2018, 3027, 3054, 3563, 6054, 7063, 7126, 10689, 14126, 21189, 21378, 42378, 513581, 1027162, 1540743, 3081486, 3595067, 7190134, 10785201, 21570402]

約数ペア:

[(1, 21570402), (2, 10785201), (3, 7190134), (6, 3595067), (7, 3081486), (14, 1540743), (21, 1027162), (42, 513581), (509, 42378), (1009, 21378), (1018, 21189), (1527, 14126), (2018, 10689), (3027, 7126), (3054, 7063), (3563, 6054)]