19939876

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{7681}}^1$

素因数の和:7755

約数の個数: 24

約数和(自身を含む): 38717280

約数和(自身を除く): 18777404

約数列:

[1, 2, 4, 11, 22, 44, 59, 118, 236, 649, 1298, 2596, 7681, 15362, 30724, 84491, 168982, 337964, 453179, 906358, 1812716, 4984969, 9969938, 19939876]

約数ペア:

[(1, 19939876), (2, 9969938), (4, 4984969), (11, 1812716), (22, 906358), (44, 453179), (59, 337964), (118, 168982), (236, 84491), (649, 30724), (1298, 15362), (2596, 7681)]