31193991

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{20269}}^1$

素因数の和:20300

約数の個数: 20

約数和(自身を含む): 49053400

約数和(自身を除く): 17859409

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 20269, 60807, 182421, 385111, 547263, 1155333, 1641789, 3465999, 10397997, 31193991]

約数ペア:

[(1, 31193991), (3, 10397997), (9, 3465999), (19, 1641789), (27, 1155333), (57, 547263), (81, 385111), (171, 182421), (513, 60807), (1539, 20269)]