21648885

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2053}}^1$

素因数の和:2117

約数の個数: 32

約数和(自身を含む): 37464960

約数和(自身を除く): 15816075

約数列:

[1, 3, 5, 15, 19, 37, 57, 95, 111, 185, 285, 555, 703, 2053, 2109, 3515, 6159, 10265, 10545, 30795, 39007, 75961, 117021, 195035, 227883, 379805, 585105, 1139415, 1443259, 4329777, 7216295, 21648885]

約数ペア:

[(1, 21648885), (3, 7216295), (5, 4329777), (15, 1443259), (19, 1139415), (37, 585105), (57, 379805), (95, 227883), (111, 195035), (185, 117021), (285, 75961), (555, 39007), (703, 30795), (2053, 10545), (2109, 10265), (3515, 6159)]