198922017

素因数分解:

$3^1\times 7^2\times {\mathrm{877}}^1\times {\mathrm{1543}}^1$

素因数の和:2437

約数の個数: 24

約数和(自身を含む): 309084096

約数和(自身を除く): 110162079

約数列:

[1, 3, 7, 21, 49, 147, 877, 1543, 2631, 4629, 6139, 10801, 18417, 32403, 42973, 75607, 128919, 226821, 1353211, 4059633, 9472477, 28417431, 66307339, 198922017]

約数ペア:

[(1, 198922017), (3, 66307339), (7, 28417431), (21, 9472477), (49, 4059633), (147, 1353211), (877, 226821), (1543, 128919), (2631, 75607), (4629, 42973), (6139, 32403), (10801, 18417)]