21267118

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{1823}}^1$

素因数の和:2151

約数の個数: 16

約数和(自身を含む): 33707520

約数和(自身を除く): 12440402

約数列:

[1, 2, 19, 38, 307, 614, 1823, 3646, 5833, 11666, 34637, 69274, 559661, 1119322, 10633559, 21267118]

約数ペア:

[(1, 21267118), (2, 10633559), (19, 1119322), (38, 559661), (307, 69274), (614, 34637), (1823, 11666), (3646, 5833)]