21412112

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{78721}}^1$

素因数の和:78746

約数の個数: 20

約数和(自身を含む): 43926876

約数和(自身を除く): 22514764

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 78721, 157442, 314884, 629768, 1259536, 1338257, 2676514, 5353028, 10706056, 21412112]

約数ペア:

[(1, 21412112), (2, 10706056), (4, 5353028), (8, 2676514), (16, 1338257), (17, 1259536), (34, 629768), (68, 314884), (136, 157442), (272, 78721)]