81427591

素因数分解:

$7^1\times {\mathrm{79}}^1\times {\mathrm{229}}^1\times {\mathrm{643}}^1$

素因数の和:958

約数の個数: 16

約数和(自身を含む): 94796800

約数和(自身を除く): 13369209

約数列:

[1, 7, 79, 229, 553, 643, 1603, 4501, 18091, 50797, 126637, 147247, 355579, 1030729, 11632513, 81427591]

約数ペア:

[(1, 81427591), (7, 11632513), (79, 1030729), (229, 355579), (553, 147247), (643, 126637), (1603, 50797), (4501, 18091)]