18740379

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{12569}}^1$

素因数の和:12650

約数の個数: 16

約数和(自身を含む): 28961280

約数和(自身を除く): 10220901

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 12569, 37707, 87983, 263949, 892399, 2677197, 6246793, 18740379]

約数ペア:

[(1, 18740379), (3, 6246793), (7, 2677197), (21, 892399), (71, 263949), (213, 87983), (497, 37707), (1491, 12569)]