19809748

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{15053}}^1$

素因数の和:15111

約数の個数: 24

約数和(自身を含む): 40465152

約数和(自身を除く): 20655404

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 658, 1316, 15053, 30106, 60212, 105371, 210742, 421484, 707491, 1414982, 2829964, 4952437, 9904874, 19809748]

約数ペア:

[(1, 19809748), (2, 9904874), (4, 4952437), (7, 2829964), (14, 1414982), (28, 707491), (47, 421484), (94, 210742), (188, 105371), (329, 60212), (658, 30106), (1316, 15053)]