21586642

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{12743}}^1$

素因数の和:12774

約数の個数: 24

約数和(自身を含む): 40678848

約数和(自身を除く): 19092206

約数列:

[1, 2, 7, 11, 14, 22, 77, 121, 154, 242, 847, 1694, 12743, 25486, 89201, 140173, 178402, 280346, 981211, 1541903, 1962422, 3083806, 10793321, 21586642]

約数ペア:

[(1, 21586642), (2, 10793321), (7, 3083806), (11, 1962422), (14, 1541903), (22, 981211), (77, 280346), (121, 178402), (154, 140173), (242, 89201), (847, 25486), (1694, 12743)]