21375851

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{683}}^1$

素因数の和:970

約数の個数: 16

約数和(自身を含む): 26002944

約数和(自身を除く): 4627093

約数列:

[1, 7, 17, 119, 263, 683, 1841, 4471, 4781, 11611, 31297, 81277, 179629, 1257403, 3053693, 21375851]

約数ペア:

[(1, 21375851), (7, 3053693), (17, 1257403), (119, 179629), (263, 81277), (683, 31297), (1841, 11611), (4471, 4781)]