18438645

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2087}}^1$

素因数の和:2145

約数の個数: 32

約数和(自身を含む): 32071680

約数和(自身を除く): 13633035

約数列:

[1, 3, 5, 15, 19, 31, 57, 93, 95, 155, 285, 465, 589, 1767, 2087, 2945, 6261, 8835, 10435, 31305, 39653, 64697, 118959, 194091, 198265, 323485, 594795, 970455, 1229243, 3687729, 6146215, 18438645]

約数ペア:

[(1, 18438645), (3, 6146215), (5, 3687729), (15, 1229243), (19, 970455), (31, 594795), (57, 323485), (93, 198265), (95, 194091), (155, 118959), (285, 64697), (465, 39653), (589, 31305), (1767, 10435), (2087, 8835), (2945, 6261)]