81521942

素因数分解:

$2^1\times {\mathrm{199}}^1\times {\mathrm{257}}^1\times {\mathrm{797}}^1$

素因数の和:1255

約数の個数: 16

約数和(自身を含む): 123530400

約数和(自身を除く): 42008458

約数列:

[1, 2, 199, 257, 398, 514, 797, 1594, 51143, 102286, 158603, 204829, 317206, 409658, 40760971, 81521942]

約数ペア:

[(1, 81521942), (2, 40760971), (199, 409658), (257, 317206), (398, 204829), (514, 158603), (797, 102286), (1594, 51143)]