31708257

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{919}}^1$

素因数の和:1013

約数の個数: 32

約数和(自身を含む): 50872320

約数和(自身を除く): 19164063

約数列:

[1, 3, 7, 21, 31, 53, 93, 159, 217, 371, 651, 919, 1113, 1643, 2757, 4929, 6433, 11501, 19299, 28489, 34503, 48707, 85467, 146121, 199423, 340949, 598269, 1022847, 1509917, 4529751, 10569419, 31708257]

約数ペア:

[(1, 31708257), (3, 10569419), (7, 4529751), (21, 1509917), (31, 1022847), (53, 598269), (93, 340949), (159, 199423), (217, 146121), (371, 85467), (651, 48707), (919, 34503), (1113, 28489), (1643, 19299), (2757, 11501), (4929, 6433)]