20512119579

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{443}}^1\times {\mathrm{116047}}^1$

素因数の和:116519

約数の個数: 32

約数和(自身を含む): 32976199680

約数和(自身を除く): 12464080101

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 443, 1329, 3101, 8417, 9303, 25251, 58919, 116047, 176757, 348141, 812329, 2204893, 2436987, 6614679, 15434251, 46302753, 51408821, 154226463, 359861747, 976767599, 1079585241, 2930302797, 6837373193, 20512119579]

約数ペア:

[(1, 20512119579), (3, 6837373193), (7, 2930302797), (19, 1079585241), (21, 976767599), (57, 359861747), (133, 154226463), (399, 51408821), (443, 46302753), (1329, 15434251), (3101, 6614679), (8417, 2436987), (9303, 2204893), (25251, 812329), (58919, 348141), (116047, 176757)]