31163391

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{6967}}^1$

素因数の和:7051

約数の個数: 24

約数和(自身を含む): 52176384

約数和(自身を除く): 21012993

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4473, 6967, 20901, 48769, 62703, 146307, 438921, 494657, 1483971, 3462599, 4451913, 10387797, 31163391]

約数ペア:

[(1, 31163391), (3, 10387797), (7, 4451913), (9, 3462599), (21, 1483971), (63, 494657), (71, 438921), (213, 146307), (497, 62703), (639, 48769), (1491, 20901), (4473, 6967)]