21887385

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{1049}}^1$

素因数の和:1177

約数の個数: 32

約数和(自身を含む): 38102400

約数和(自身を除く): 16215015

約数列:

[1, 3, 5, 13, 15, 39, 65, 107, 195, 321, 535, 1049, 1391, 1605, 3147, 4173, 5245, 6955, 13637, 15735, 20865, 40911, 68185, 112243, 204555, 336729, 561215, 1459159, 1683645, 4377477, 7295795, 21887385]

約数ペア:

[(1, 21887385), (3, 7295795), (5, 4377477), (13, 1683645), (15, 1459159), (39, 561215), (65, 336729), (107, 204555), (195, 112243), (321, 68185), (535, 40911), (1049, 20865), (1391, 15735), (1605, 13637), (3147, 6955), (4173, 5245)]