20405686

素因数分解:

$2^1\times 7^1\times {\mathrm{907}}^1\times {\mathrm{1607}}^1$

素因数の和:2523

約数の個数: 16

約数和(自身を含む): 35041536

約数和(自身を除く): 14635850

約数列:

[1, 2, 7, 14, 907, 1607, 1814, 3214, 6349, 11249, 12698, 22498, 1457549, 2915098, 10202843, 20405686]

約数ペア:

[(1, 20405686), (2, 10202843), (7, 2915098), (14, 1457549), (907, 22498), (1607, 12698), (1814, 11249), (3214, 6349)]