21205682

素因数分解:

$2^1\times {\mathrm{137}}^1\times {\mathrm{193}}^1\times {\mathrm{401}}^1$

素因数の和:733

約数の個数: 16

約数和(自身を含む): 32287032

約数和(自身を除く): 11081350

約数列:

[1, 2, 137, 193, 274, 386, 401, 802, 26441, 52882, 54937, 77393, 109874, 154786, 10602841, 21205682]

約数ペア:

[(1, 21205682), (2, 10602841), (137, 154786), (193, 109874), (274, 77393), (386, 54937), (401, 52882), (802, 26441)]