21482280

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19891}}^1$

素因数の和:19911

約数の個数: 64

約数和(自身を含む): 71611200

約数和(自身を除く): 50128920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 19891, 39782, 59673, 79564, 99455, 119346, 159128, 179019, 198910, 238692, 298365, 358038, 397820, 477384, 537057, 596730, 716076, 795640, 895095, 1074114, 1193460, 1432152, 1790190, 2148228, 2386920, 2685285, 3580380, 4296456, 5370570, 7160760, 10741140, 21482280]

約数ペア:

[(1, 21482280), (2, 10741140), (3, 7160760), (4, 5370570), (5, 4296456), (6, 3580380), (8, 2685285), (9, 2386920), (10, 2148228), (12, 1790190), (15, 1432152), (18, 1193460), (20, 1074114), (24, 895095), (27, 795640), (30, 716076), (36, 596730), (40, 537057), (45, 477384), (54, 397820), (60, 358038), (72, 298365), (90, 238692), (108, 198910), (120, 179019), (135, 159128), (180, 119346), (216, 99455), (270, 79564), (360, 59673), (540, 39782), (1080, 19891)]