20811308

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{39119}}^1$

素因数の和:39149

約数の個数: 24

約数和(自身を含む): 43814400

約数和(自身を除く): 23003092

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 39119, 78238, 156476, 273833, 547666, 743261, 1095332, 1486522, 2973044, 5202827, 10405654, 20811308]

約数ペア:

[(1, 20811308), (2, 10405654), (4, 5202827), (7, 2973044), (14, 1486522), (19, 1095332), (28, 743261), (38, 547666), (76, 273833), (133, 156476), (266, 78238), (532, 39119)]