21590055

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{12967}}^1$

素因数の和:13015

約数の個数: 24

約数和(自身を含む): 38437152

約数和(自身を除く): 16847097

約数列:

[1, 3, 5, 9, 15, 37, 45, 111, 185, 333, 555, 1665, 12967, 38901, 64835, 116703, 194505, 479779, 583515, 1439337, 2398895, 4318011, 7196685, 21590055]

約数ペア:

[(1, 21590055), (3, 7196685), (5, 4318011), (9, 2398895), (15, 1439337), (37, 583515), (45, 479779), (111, 194505), (185, 116703), (333, 64835), (555, 38901), (1665, 12967)]