21887685

素因数分解:

$3^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{823}}^1$

素因数の和:1034

約数の個数: 32

約数和(自身を含む): 39156480

約数和(自身を除く): 17268795

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 197, 591, 823, 985, 1773, 2469, 2955, 4115, 5319, 7407, 8865, 12345, 22221, 26595, 37035, 111105, 162131, 486393, 810655, 1459179, 2431965, 4377537, 7295895, 21887685]

約数ペア:

[(1, 21887685), (3, 7295895), (5, 4377537), (9, 2431965), (15, 1459179), (27, 810655), (45, 486393), (135, 162131), (197, 111105), (591, 37035), (823, 26595), (985, 22221), (1773, 12345), (2469, 8865), (2955, 7407), (4115, 5319)]