21040486

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{313}}^1$

素因数の和:424

約数の個数: 32

約数和(自身を含む): 35042400

約数和(自身を除く): 14001914

約数列:

[1, 2, 19, 29, 38, 58, 61, 122, 313, 551, 626, 1102, 1159, 1769, 2318, 3538, 5947, 9077, 11894, 18154, 19093, 33611, 38186, 67222, 172463, 344926, 362767, 553697, 725534, 1107394, 10520243, 21040486]

約数ペア:

[(1, 21040486), (2, 10520243), (19, 1107394), (29, 725534), (38, 553697), (58, 362767), (61, 344926), (122, 172463), (313, 67222), (551, 38186), (626, 33611), (1102, 19093), (1159, 18154), (1769, 11894), (2318, 9077), (3538, 5947)]