21615184

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{43579}}^1$

素因数の和:43618

約数の個数: 20

約数和(自身を含む): 43231360

約数和(自身を除く): 21616176

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 43579, 87158, 174316, 348632, 697264, 1350949, 2701898, 5403796, 10807592, 21615184]

約数ペア:

[(1, 21615184), (2, 10807592), (4, 5403796), (8, 2701898), (16, 1350949), (31, 697264), (62, 348632), (124, 174316), (248, 87158), (496, 43579)]