21812128

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{52433}}^1$

素因数の和:52456

約数の個数: 24

約数和(自身を含む): 46246788

約数和(自身を除く): 24434660

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 52433, 104866, 209732, 419464, 681629, 838928, 1363258, 1677856, 2726516, 5453032, 10906064, 21812128]

約数ペア:

[(1, 21812128), (2, 10906064), (4, 5453032), (8, 2726516), (13, 1677856), (16, 1363258), (26, 838928), (32, 681629), (52, 419464), (104, 209732), (208, 104866), (416, 52433)]