399932211

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{8039}}^1$

素因数の和:8175

約数の個数: 32

約数和(自身を含む): 642170880

約数和(自身を除く): 242238669

約数列:

[1, 3, 7, 21, 23, 69, 103, 161, 309, 483, 721, 2163, 2369, 7107, 8039, 16583, 24117, 49749, 56273, 168819, 184897, 554691, 828017, 1294279, 2484051, 3882837, 5796119, 17388357, 19044391, 57133173, 133310737, 399932211]

約数ペア:

[(1, 399932211), (3, 133310737), (7, 57133173), (21, 19044391), (23, 17388357), (69, 5796119), (103, 3882837), (161, 2484051), (309, 1294279), (483, 828017), (721, 554691), (2163, 184897), (2369, 168819), (7107, 56273), (8039, 49749), (16583, 24117)]