42721623

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{9551}}^1$

素因数の和:9635

約数の個数: 24

約数和(自身を含む): 71525376

約数和(自身を除く): 28803753

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4473, 9551, 28653, 66857, 85959, 200571, 601713, 678121, 2034363, 4746847, 6103089, 14240541, 42721623]

約数ペア:

[(1, 42721623), (3, 14240541), (7, 6103089), (9, 4746847), (21, 2034363), (63, 678121), (71, 601713), (213, 200571), (497, 85959), (639, 66857), (1491, 28653), (4473, 9551)]