168388

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:147

約数の個数: 24

約数和(自身を含む): 332640

約数和(自身を除く): 164252

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 89, 172, 178, 356, 473, 946, 979, 1892, 1958, 3827, 3916, 7654, 15308, 42097, 84194, 168388]

約数ペア:

[(1, 168388), (2, 84194), (4, 42097), (11, 15308), (22, 7654), (43, 3916), (44, 3827), (86, 1958), (89, 1892), (172, 979), (178, 946), (356, 473)]