21682078

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{51871}}^1$

素因数の和:51903

約数の個数: 16

約数和(自身を含む): 37347840

約数和(自身を除く): 15665762

約数列:

[1, 2, 11, 19, 22, 38, 209, 418, 51871, 103742, 570581, 985549, 1141162, 1971098, 10841039, 21682078]

約数ペア:

[(1, 21682078), (2, 10841039), (11, 1971098), (19, 1141162), (22, 985549), (38, 570581), (209, 103742), (418, 51871)]