20947284

素因数分解:

$2^2\times 3^2\times {\mathrm{581869}}^1$

素因数の和:581879

約数の個数: 18

約数和(自身を含む): 52950170

約数和(自身を除く): 32002886

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 581869, 1163738, 1745607, 2327476, 3491214, 5236821, 6982428, 10473642, 20947284]

約数ペア:

[(1, 20947284), (2, 10473642), (3, 6982428), (4, 5236821), (6, 3491214), (9, 2327476), (12, 1745607), (18, 1163738), (36, 581869)]