31039821

素因数分解:

$3^3\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:370

約数の個数: 32

約数和(自身を含む): 47520000

約数和(自身を除く): 16480179

約数列:

[1, 3, 9, 27, 53, 109, 159, 199, 327, 477, 597, 981, 1431, 1791, 2943, 5373, 5777, 10547, 17331, 21691, 31641, 51993, 65073, 94923, 155979, 195219, 284769, 585657, 1149623, 3448869, 10346607, 31039821]

約数ペア:

[(1, 31039821), (3, 10346607), (9, 3448869), (27, 1149623), (53, 585657), (109, 284769), (159, 195219), (199, 155979), (327, 94923), (477, 65073), (597, 51993), (981, 31641), (1431, 21691), (1791, 17331), (2943, 10547), (5373, 5777)]