16761969

素因数分解:

$3^2\times 7^2\times {\mathrm{191}}^1\times {\mathrm{199}}^1$

素因数の和:410

約数の個数: 36

約数和(自身を含む): 28454400

約数和(自身を除く): 11692431

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 191, 199, 441, 573, 597, 1337, 1393, 1719, 1791, 4011, 4179, 9359, 9751, 12033, 12537, 28077, 29253, 38009, 84231, 87759, 114027, 266063, 342081, 798189, 1862441, 2394567, 5587323, 16761969]

約数ペア:

[(1, 16761969), (3, 5587323), (7, 2394567), (9, 1862441), (21, 798189), (49, 342081), (63, 266063), (147, 114027), (191, 87759), (199, 84231), (441, 38009), (573, 29253), (597, 28077), (1337, 12537), (1393, 12033), (1719, 9751), (1791, 9359), (4011, 4179)]