31691817

素因数分解:

$3^7\times {\mathrm{43}}^1\times {\mathrm{337}}^1$

素因数の和:401

約数の個数: 32

約数和(自身を含む): 48780160

約数和(自身を除く): 17088343

約数列:

[1, 3, 9, 27, 43, 81, 129, 243, 337, 387, 729, 1011, 1161, 2187, 3033, 3483, 9099, 10449, 14491, 27297, 31347, 43473, 81891, 94041, 130419, 245673, 391257, 737019, 1173771, 3521313, 10563939, 31691817]

約数ペア:

[(1, 31691817), (3, 10563939), (9, 3521313), (27, 1173771), (43, 737019), (81, 391257), (129, 245673), (243, 130419), (337, 94041), (387, 81891), (729, 43473), (1011, 31347), (1161, 27297), (2187, 14491), (3033, 10449), (3483, 9099)]