21536820

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{39883}}^1$

素因数の和:39901

約数の個数: 48

約数和(自身を含む): 67005120

約数和(自身を除く): 45468300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 39883, 79766, 119649, 159532, 199415, 239298, 358947, 398830, 478596, 598245, 717894, 797660, 1076841, 1196490, 1435788, 1794735, 2153682, 2392980, 3589470, 4307364, 5384205, 7178940, 10768410, 21536820]

約数ペア:

[(1, 21536820), (2, 10768410), (3, 7178940), (4, 5384205), (5, 4307364), (6, 3589470), (9, 2392980), (10, 2153682), (12, 1794735), (15, 1435788), (18, 1196490), (20, 1076841), (27, 797660), (30, 717894), (36, 598245), (45, 478596), (54, 398830), (60, 358947), (90, 239298), (108, 199415), (135, 159532), (180, 119649), (270, 79766), (540, 39883)]