21234913

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{2383}}^1$

素因数の和:2476

約数の個数: 16

約数和(自身を含む): 25937920

約数和(自身を除く): 4703007

約数列:

[1, 7, 19, 67, 133, 469, 1273, 2383, 8911, 16681, 45277, 159661, 316939, 1117627, 3033559, 21234913]

約数ペア:

[(1, 21234913), (7, 3033559), (19, 1117627), (67, 316939), (133, 159661), (469, 45277), (1273, 16681), (2383, 8911)]