21836280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{283}}^1\times {\mathrm{643}}^1$

素因数の和:940

約数の個数: 64

約数和(自身を含む): 65842560

約数和(自身を除く): 44006280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 283, 566, 643, 849, 1132, 1286, 1415, 1698, 1929, 2264, 2572, 2830, 3215, 3396, 3858, 4245, 5144, 5660, 6430, 6792, 7716, 8490, 9645, 11320, 12860, 15432, 16980, 19290, 25720, 33960, 38580, 77160, 181969, 363938, 545907, 727876, 909845, 1091814, 1455752, 1819690, 2183628, 2729535, 3639380, 4367256, 5459070, 7278760, 10918140, 21836280]

約数ペア:

[(1, 21836280), (2, 10918140), (3, 7278760), (4, 5459070), (5, 4367256), (6, 3639380), (8, 2729535), (10, 2183628), (12, 1819690), (15, 1455752), (20, 1091814), (24, 909845), (30, 727876), (40, 545907), (60, 363938), (120, 181969), (283, 77160), (566, 38580), (643, 33960), (849, 25720), (1132, 19290), (1286, 16980), (1415, 15432), (1698, 12860), (1929, 11320), (2264, 9645), (2572, 8490), (2830, 7716), (3215, 6792), (3396, 6430), (3858, 5660), (4245, 5144)]