19426959

素因数分解:

$3^4\times {\mathrm{373}}^1\times {\mathrm{643}}^1$

素因数の和:1028

約数の個数: 20

約数和(自身を含む): 29143576

約数和(自身を除く): 9716617

約数列:

[1, 3, 9, 27, 81, 373, 643, 1119, 1929, 3357, 5787, 10071, 17361, 30213, 52083, 239839, 719517, 2158551, 6475653, 19426959]

約数ペア:

[(1, 19426959), (3, 6475653), (9, 2158551), (27, 719517), (81, 239839), (373, 52083), (643, 30213), (1119, 17361), (1929, 10071), (3357, 5787)]