19708143

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{10313}}^1$

素因数の和:10343

約数の個数: 24

約数和(自身を含む): 32922288

約数和(自身を除く): 13214145

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 10313, 30939, 72191, 134069, 216573, 402207, 505337, 938483, 1516011, 2815449, 6569381, 19708143]

約数ペア:

[(1, 19708143), (3, 6569381), (7, 2815449), (13, 1516011), (21, 938483), (39, 505337), (49, 402207), (91, 216573), (147, 134069), (273, 72191), (637, 30939), (1911, 10313)]