18865490

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{38501}}^1$

素因数の和:38522

約数の個数: 24

約数和(自身を含む): 39503052

約数和(自身を除く): 20637562

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 38501, 77002, 192505, 269507, 385010, 539014, 1347535, 1886549, 2695070, 3773098, 9432745, 18865490]

約数ペア:

[(1, 18865490), (2, 9432745), (5, 3773098), (7, 2695070), (10, 1886549), (14, 1347535), (35, 539014), (49, 385010), (70, 269507), (98, 192505), (245, 77002), (490, 38501)]