21290026

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1\times {\mathrm{1061}}^1$

素因数の和:1269

約数の個数: 16

約数和(自身を含む): 32624640

約数和(自身を除く): 11334614

約数列:

[1, 2, 79, 127, 158, 254, 1061, 2122, 10033, 20066, 83819, 134747, 167638, 269494, 10645013, 21290026]

約数ペア:

[(1, 21290026), (2, 10645013), (79, 269494), (127, 167638), (158, 134747), (254, 83819), (1061, 20066), (2122, 10033)]