21287882

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{1009}}^1$

素因数の和:1166

約数の個数: 32

約数和(自身を含む): 40141440

約数和(自身を除く): 18853558

約数列:

[1, 2, 7, 11, 14, 22, 77, 137, 154, 274, 959, 1009, 1507, 1918, 2018, 3014, 7063, 10549, 11099, 14126, 21098, 22198, 77693, 138233, 155386, 276466, 967631, 1520563, 1935262, 3041126, 10643941, 21287882]

約数ペア:

[(1, 21287882), (2, 10643941), (7, 3041126), (11, 1935262), (14, 1520563), (22, 967631), (77, 276466), (137, 155386), (154, 138233), (274, 77693), (959, 22198), (1009, 21098), (1507, 14126), (1918, 11099), (2018, 10549), (3014, 7063)]