21894860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{84211}}^1$

素因数の和:84233

約数の個数: 24

約数和(自身を含む): 49516656

約数和(自身を除く): 27621796

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 84211, 168422, 336844, 421055, 842110, 1094743, 1684220, 2189486, 4378972, 5473715, 10947430, 21894860]

約数ペア:

[(1, 21894860), (2, 10947430), (4, 5473715), (5, 4378972), (10, 2189486), (13, 1684220), (20, 1094743), (26, 842110), (52, 421055), (65, 336844), (130, 168422), (260, 84211)]