16520428

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{691}}^1$

素因数の和:877

約数の個数: 24

約数和(自身を含む): 29839040

約数和(自身を除く): 13318612

約数列:

[1, 2, 4, 43, 86, 139, 172, 278, 556, 691, 1382, 2764, 5977, 11954, 23908, 29713, 59426, 96049, 118852, 192098, 384196, 4130107, 8260214, 16520428]

約数ペア:

[(1, 16520428), (2, 8260214), (4, 4130107), (43, 384196), (86, 192098), (139, 118852), (172, 96049), (278, 59426), (556, 29713), (691, 23908), (1382, 11954), (2764, 5977)]