19801382

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{11087}}^1$

素因数の和:11155

約数の個数: 16

約数和(自身を含む): 31933440

約数和(自身を除く): 12132058

約数列:

[1, 2, 19, 38, 47, 94, 893, 1786, 11087, 22174, 210653, 421306, 521089, 1042178, 9900691, 19801382]

約数ペア:

[(1, 19801382), (2, 9900691), (19, 1042178), (38, 521089), (47, 421306), (94, 210653), (893, 22174), (1786, 11087)]