1901952003

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{680971}}^1$

素因数の和:681007

約数の個数: 24

約数和(自身を含む): 3105232320

約数和(自身を除く): 1203280317

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 680971, 2042913, 4766797, 12938449, 14300391, 33367579, 38815347, 90569143, 100102737, 271707429, 633984001, 1901952003]

約数ペア:

[(1, 1901952003), (3, 633984001), (7, 271707429), (19, 100102737), (21, 90569143), (49, 38815347), (57, 33367579), (133, 14300391), (147, 12938449), (399, 4766797), (931, 2042913), (2793, 680971)]