19904619

素因数分解:

$3^1\times 7^1\times {\mathrm{449}}^1\times {\mathrm{2111}}^1$

素因数の和:2570

約数の個数: 16

約数和(自身を含む): 30412800

約数和(自身を除く): 10508181

約数列:

[1, 3, 7, 21, 449, 1347, 2111, 3143, 6333, 9429, 14777, 44331, 947839, 2843517, 6634873, 19904619]

約数ペア:

[(1, 19904619), (3, 6634873), (7, 2843517), (21, 947839), (449, 44331), (1347, 14777), (2111, 9429), (3143, 6333)]