21645603

素因数分解:

$3^3\times 7^2\times {\mathrm{16361}}^1$

素因数の和:16384

約数の個数: 24

約数和(自身を含む): 37305360

約数和(自身を除く): 15659757

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 16361, 49083, 114527, 147249, 343581, 441747, 801689, 1030743, 2405067, 3092229, 7215201, 21645603]

約数ペア:

[(1, 21645603), (3, 7215201), (7, 3092229), (9, 2405067), (21, 1030743), (27, 801689), (49, 441747), (63, 343581), (147, 147249), (189, 114527), (441, 49083), (1323, 16361)]