20883219

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{647}}^1$

素因数の和:739

約数の個数: 32

約数和(自身を含む): 33592320

約数和(自身を除く): 12709101

約数列:

[1, 3, 7, 21, 29, 53, 87, 159, 203, 371, 609, 647, 1113, 1537, 1941, 4529, 4611, 10759, 13587, 18763, 32277, 34291, 56289, 102873, 131341, 240037, 394023, 720111, 994439, 2983317, 6961073, 20883219]

約数ペア:

[(1, 20883219), (3, 6961073), (7, 2983317), (21, 994439), (29, 720111), (53, 394023), (87, 240037), (159, 131341), (203, 102873), (371, 56289), (609, 34291), (647, 32277), (1113, 18763), (1537, 13587), (1941, 10759), (4529, 4611)]