21514868

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{31}}^2\times {\mathrm{193}}^1$

素因数の和:288

約数の個数: 36

約数和(自身を含む): 40454820

約数和(自身を除く): 18939952

約数列:

[1, 2, 4, 29, 31, 58, 62, 116, 124, 193, 386, 772, 899, 961, 1798, 1922, 3596, 3844, 5597, 5983, 11194, 11966, 22388, 23932, 27869, 55738, 111476, 173507, 185473, 347014, 370946, 694028, 741892, 5378717, 10757434, 21514868]

約数ペア:

[(1, 21514868), (2, 10757434), (4, 5378717), (29, 741892), (31, 694028), (58, 370946), (62, 347014), (116, 185473), (124, 173507), (193, 111476), (386, 55738), (772, 27869), (899, 23932), (961, 22388), (1798, 11966), (1922, 11194), (3596, 5983), (3844, 5597)]