19640439

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23981}}^1$

素因数の和:24007

約数の個数: 24

約数和(自身を含む): 34917792

約数和(自身を除く): 15277353

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 23981, 71943, 167867, 215829, 311753, 503601, 935259, 1510803, 2182271, 2805777, 6546813, 19640439]

約数ペア:

[(1, 19640439), (3, 6546813), (7, 2805777), (9, 2182271), (13, 1510803), (21, 935259), (39, 503601), (63, 311753), (91, 215829), (117, 167867), (273, 71943), (819, 23981)]