21419818

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{41351}}^1$

素因数の和:41397

約数の個数: 16

約数和(自身を含む): 37713024

約数和(自身を除く): 16293206

約数列:

[1, 2, 7, 14, 37, 74, 259, 518, 41351, 82702, 289457, 578914, 1529987, 3059974, 10709909, 21419818]

約数ペア:

[(1, 21419818), (2, 10709909), (7, 3059974), (14, 1529987), (37, 578914), (74, 289457), (259, 82702), (518, 41351)]